fireplace thermostat wiring

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Also, the 24vac output from a standard WIFI thermostat, I assume, would fry the fireplace millivolt flame on/off controller. That worked for days but the fireplace started to make a ticking sound. 1 year ago. Plus, I’m anything but a technician so what I have detailed below is here purely as a guideline. The fan is controlled internally within the fireplace itsself so I dont need to worry about it. Orange – This wire connects to your heat pump (if you have one). First, disconnect the thermostat wires from the gas fireplace -- you will use your existing thermostat wiring -- and it's always a good idea to disconnect things when working with electricity. Reply Gas Fireplace & Gas Heater Manuals, parts lists, wiring diagrams: Free downloadable manuals for LP and natural gas-fueled gas fireplaces, gas logs, gas fireplace heaters. Answer Do you get an error message on the Nest? I had to add the additional AC power adapter to provide this voltage which was the reason for adding the relay as well. Connect one lead from the AC adapter to the RH terminal on the Nest backplate (you will probably have to tin the end of the wire so the Nest can sense there is a wire connected), splice the other lead from the AC adapter to the existing RED thermostat wire and finally the WHITE thermostat wire to the W1 terminal on the Nest backplate. Life is good! Plug in the AC adapter. Disconnect the fryer from the gas and electrical power supplies. My gas fireplace is a millivolt system which means that it does not provide the typical 24 VAC needed to power the Nest thermostat like say most forced air gas furnaces would. General Discussion. You can have two thermostats on this kind of heater. The Nest is going to switch the 24v source and this relay is going to switch the millivolt system in your gas fireplace. I purchased a Venstar ACC0436 2-Wire Kit and used that relay and power supply and it seems to be working. I'm surprised that worked at all. 17 days ago. It can literally be this easy. Didn't make sure the adapter was 12V AC. These types of heaters just need a tiny voltage to work, and the voltage is generated by a thermocouple next to the pilot flame.The only caveat is that if you set the mechanical thermostat high, you can't shut off the heat with the Nest. If the wires are different colors, check the connections on the appliance control panel. I never even thought about that. After using it, Nest reports that there isn't any power (R).The black wires going to the Nest in the picture are the power adapter, R and C.I have a White Rodgers 90-370 Relay. What wire gauge is run between the fireplace and the t-stat? Contents SectionPage Title Introduction /Contact us/Wiring Notes 3 - 4 Wiring plans Sundial S Plan 5 -7 Sundial S Plan Plus 8 Sundial Y Plan 9 - 11 Sundial C Plan 12 - 13 Sundial C Plan Plus 14 Sundial W Plan 15 Smart Fit 16 - 17 Wiring Guides Boiler Wiring 18 Programmer Wiring 19 Valve Wiring 20 Frost Thermostats 21 Fault finding Wired Sundial Y Plan 22 - 23 Category : Thermostat Wiring; Post Date : November 29, 2020; Filled in: Thermostat Wiring Gas Fireplace Thermostat Wiring 9 out of 10 based on 30 ratings. Durablow MFB TS120 Fireplace Stove Blower Fan Magnetic Ceramic Thermostat Auto Switch ON at 120°F (50°C), Off at 90°F (32°C) Approx 4.4 out of 5 stars 281 $14.95 $ 14 . Get it as soon as Thu, Mar 18. Woah..... guess what I did?!?!?! Thanks! 3 goes to W1 on the Nest 1 goes to C along with the power adapter. One of the biggest complaints, or rather, reasons for confusion I have come across is down to the fact that many thermostats on the market don’t work if your system isn’t equipped with a ‘C’ (common) wire. Yellow – The yellow wire connects to your compressor. The simplest and quickest answer for converting to a thermostat is to just replace the switch with a millivolt thermostat. You may need to have some female spade terminals handy for this step if you don't already have them. You can check it. Just connect the thermostat wires as shown above and connect a 24 AC transformer (see next step) to provide the power. What I would like you to know is the information detailed below is based on the industry standard, yet not all thermostats will work this way simply because letters and numbers are used as well as color. It should not matter as you are only connecting the circuit between those two terminals. Connect the white wire to the "W" terminal on the furnace and thermostat. Whoa indeed! For some reason whenever I'm at the cottage there are times when the nest doesn't have enough power to keep the wifi connection. Will this work with the Nest Thermostat E, by using the R, C, and W1? I got mine at Grainger for $9.05 (item number 1N184). 2. See the diagram below for what each wire controls on your system: S – Indoor and Outdoor Wired Sensors Y – Compressor Stage 1 (Cooling) I found some other tutorials online but none really seemed to cover everything you'll need so here you go! Match your replacement thermostat to the fireplace's original thermostat, since incompatible thermostats will cause other … Install the AC adapter -- I placed mine behind the wall in the laundry room (very convenient there was an outlet right there for me) and ran the wiring up the wall and through the same hole as the thermostat wire. I believe I have it working now. Thanks for such a great clear diagram and that's what I'll be using for my install (Emerson Sensi Smart-55 thermostat). As I recall right after I installed this in my home I was having charging issues and it ended up being that the small gauge wires from the AC adapter weren't making good contact with the terminals in the base of the Nest. So I figured that I needed the relay and followed these instructions and it works for a short period of time before the power adapter fails; I've killed two now. https://www.thermostatcenter.com/ is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. This was the reason for tinning the ends of the small wires. . Millivolt Thermostats. Thx! AND it has been recorded by a professional in the industry. If you’re still a little confused (and I can understand why you would be), I have added a thermostat wiring made simple video for you to look at which isn’t very long but is one of the best explanations I have come across. Red – Now, there can be two separate wires for this. The positive lead from the transformer should go to the Rc terminal and the negative should go to the C terminal. A two-wire thermostat has two terminals labeled R and W. These letters stand for red and white, so if those are the colors of the wires, connect the red one to the R terminal and the white one to the W terminal. Just went grabbed a 24 AC transformer and bingo! Nest Thermostat With Gas Fireplace (or Other Millivolt System) Step 1: Purchase a 24v AC Adapter. 2 months ago. Reply Two wire Thermostat for Fireplace. Disconnect the pilot generator and operating thermostat wiring from the valve. Green – The green wire connects to the fan. Reply Thanks for posting this and the help. Once I did that and set the thermostat to HEAT and set the Fan to ON the fireplace came on. All I have is a milivolt circuit and no C wire. 2 & 4 going to the fireplace thermostat. Connect the Nest thermostat to the backplate. When you purchase an item through links on our site, we may earn an affiliate commission. We carry a variety … So, this is what you might expect to see in terms of colored wires and what they mean: You may also have up to two black wires as well but these are used for various heating systems in the North or for outdoor purposes, so for most of you these won’t need any attention. Millivolt systems require a specific type of low voltage thermostat. 1 year ago. MANTEL CLEARANCE TOP VIEW OF FIREPLACE BOTTOM LOUVER GAS CONTROL VALVE. By the use of an adjustable set-point, the job of the thermostat is to turn on either the heating or cooling system to maintain the desired room temperature in the home, and to turn off the system when the desired temperature is achieved. FREE Shipping on orders over $25 shipped by Amazon. The fireplace on-off switch is millivolt. Reviews and General Information on Programmable Thermostats. About: I would rather learn how to do it myself rather than pay someone else to do it for me. You will need a fan relay. How far away from the fireplace is the thermostat located? Your gas fireplace or other millivolt system does not operate using 24v AC like most HVAC systems. However, there are two things wrong still. Just set it low, and put it somewhere that nobody will mess with it. Just follow the wiring instructions given in this tutorial...one wire connects to "W" and the other to "R". Heck, now I’m not calling anyone a dummy! Use only a 750 millivolt DC two-wire circuit thermostat with this appliance. Thermostat Fireplace (White) - Digital Programmable Thermostat LCD Display Smart Temperature Controller 5A Children Lock misoperation prevented 5.0 out of 5 stars 2 $38.89 $ 38 . 89 $41.39 $41.39 I found because the wires from the power adapter were such a small gauge and stranded that they weren't making good contact in the base of the Nest. If all is well, you should now have a fully functional Nest thermostat to operate your gas fireplace. Refer to the fireplace owner's manual to check the voltage of your current thermostat. The main trouble is dealing with those different colored wires, knowing which one does what and if that wasn’t enough, you also have numbers and letters to deal with. The instruction look to be identical to what is detailed here. We include links to contact information for each manufacturer or producer of these heating products and their related equipment, parts, and installation, repair, wiring diagrams, manuals. I've been using this successfully for 2 years at my cottage. The problem is the wiring for the WIFI thermostat. I got mine at Lowes for $7.99 (item number 168261). I only heat my home with a gas fireplace, so kind of seems like a waste to have the full on Nest gen3. And yes this system is still working today with the same setup and components mentioned in the tutorial. It took a while to fully charge the battery in the Nest so that I could configure the WiFi network settings and access the thermostat from the app. I suspect the pilot generator is getting weak. 4 weeks ago. I will explain that in a little more detail further down this page. I need to replace the existing thermostat for my Gas Fireplace. C (25 ft. length maximum) or equivalent. Reply Here is a diagram of what I did in order to get this to work. Nest Thermostat With Gas Fireplace Or Other Millivolt. The thermostat uses 1 wire to control each of your HVAC system’s primary functions, such as heating, cooling, fan, etc. If all is well, you should now have a fully functional Nest thermostat to operate your gas fireplace. schema de Gas Fireplace Thermostat Wiring. Gas Fireplace Thermostat Wiring. 3. All circuits usually are the same : voltage, ground, solitary component, and buttons. 97. Connect your existing thermostat wires from the Nest to terminals 1 and 3 on the relay. 13 days ago. 95 White – The white wire is what connects to the (auxiliary) heat on your system. I purchased a second one and was extremely careful this time and after a few tries turning on the fireplace, the Nest again reported there was no power - R. Reply You have to supply the 24v using an external transformer. Install the relay in or near the gas fireplace. Reply I attempted this project in a room with a newly installed fireplace as well as room that never had a thermostat installed before. I got mine at Grainger for $9.05 (item number 1N184). Slide the provided spade connectors onto the stripped ends of the wires in the gas fireplace control panel. This short tutorial will help you use your Nest thermostat with your gas fireplace or other millivolt type system. Should I connect 2 and 4 on the relay to TH and TPTH? Question Yellow – The yellow wire connects to your compressor. You will need a fan relay. Can you take a picture of your power adapter? 95 Works perfectly with Nest E...I have 2 gas fireplaces connected to Nest E's. 00 While an air conditioner uses the process of refrigeration to only cool, the central air conditioner will usually be paired with a gas furnace, an electric furnace, or some other method of heating. Avoid drafty areas or any area that may affect the accuracy of the thermostat. I really don't want the nest going dead when I'm not there as I keep it at 10c and I don't want the place to freeze. The relay is also silent. 4.6 out of 5 stars 48. Share it with us! Durablow SH3001 Gas Fireplace Millivolt Valve WiFi Smart Home Remote Control Works with Amazon Alexa, Google Home, Samsung SmartThings, IFTTT, Siri 4.4 out of 5 stars 1,507 $65.95 $ 65 . Unfortunately I'm not familiar with the Nest E and don't have one available to test. Strip 1/4-inch of insulation from each end of the 6-inch piece of low voltage wire with a pair of wire … cdikland February 26, 2015, 2:31pm #1. 3 months ago. 4 weeks ago. NOTE: If any of the original wire supplied must be replaced, use type 18 AWG deg. I needed to isolate the 24 VAC powering the Nest from the millivolt circuitry in the fireplace. Designed for use with gas fireplaces and some heating systems, our selection of millivolt thermostats can be used with or without an external power source. Even the most seasoned people who enjoy DIY may come across problems with wiring a thermostat. TURBRO Eternal Flame EF23-LG Electric Fireplace Logs, 23" Remote Control Fireplace Insert Log Heater, Realistic Lemonwood Ember Bed, Thermostat, Timer, 1400W … Tip I had originally wired up a Nest E up without the relay using instructions I found on YouTube. When I moved in I replaced the regular on/off wall switch with an old (20 years also) Robertshaw 9600 programmable thermostat to give a bit more control of the fireplace. It took a while to fully charge the battery in the Nest so that I could configure the WiFi network settings and access the thermostat from the app. 1. I have a Majestic DV360 gas fireplace, close to 20 years old. Connect the Nest thermostat to the backplate. If, for any reason, your power is out, or the Nest is unresponsive, the mechanical thermostat will trigger the heat if it gets cold enough.As long as there is gas, the heater will work! White – The white wire is what connects to the (auxiliary) heat on your system. I then hooked up the thermostat again and found out that the switch on the fireplace wasn't set to REMOTE. You know what? uncategorized. 2 months ago. I looked it up and it was DC! Reply Connect the thermostat leads from the fireplace to terminals 2 and 4 on the relay. I have a Mendota gas fireplace that has a Smart-Stat-II remote. Feed the wires into the electrical box. You're very welcome! Turns out there are only 2 wires connected the this device (W and RH). The first time I tried I was cleaning everything up and I briefly touched the power supply wires together and figured I killed it. NO FREAKING WAY!!! 2 months ago. Did you make this project? The thermostat should be placed in the same room as the heater, typically 5 feet off the floor. AIRBLAZE T14, Universal Fireplace Blower Fan Kit 14" with Temperature and Speed Controller, for Lennox, Hearth Glo, Majestic, Rotom 4.3 out of 5 stars 125 $119.00 $ 119 . Most two-wire thermostats wire have a red and white wire encased in a brown insulated coating. If any thermostat calls for heat, the heat is on. Green – The green wire connects to the fan. Plug in the AC adapter. Are all of the wiring connections tight? Step 4 Strip 1/2 inch of insulation from the ends of the wire. You posted this a year ago and I just wanted to ask if it's still working fine and what was your reasoning for adding the C wire if all you needed was the Rh and W1 to get the nest working. Thermostat Center is supported by our readers. Also, You may need to tin the ends of the wires. Rv Thermostat Wiring Diagram Source: tse4.mm.bing.net Read electrical wiring diagrams from negative to positive and redraw the circuit being a straight line. I was able to wire my natural gas fireplace to my nest in my sunroom. Run a section of two-conductor, low-voltage wire from the single-gang box to the control panel of the gas fireplace. If you hook them up in parallel, either one can turn on the heater. It connects to a Mendota Thermostat that has a fan control. 10 days ago. $9.97 $ 9. The thermostat is the control device that provides a simple user interface with the internal workings of your homes climate control system. I'm struggling to come up with a reason why this would be happening as mines been running since without issue. The image above is from my own fireplace insert. Before I leave the house i turn up the heat via the app. 50 user reviews. I've only got 3 wires to my millivolt fireplace system and the thermostat requires the C wire in order to keep the wifi connect (just the Rh and W1 work just fine without the wifi control if there is no C wire). Thanks a million for the tutorial. Mine didn't say DC but had a line under it. Answer Thermostat Wiring Diagrams for Heat Pumps - Heat Pump Thermostat Wire Diagrams Heat pumps are different than air conditioners because a heat pump uses the process of refrigeration to heat and cool . I understand how to use the C wire now. It can be an important failsafe. BBQ-Element Magnetic Thermostat Switch for Fireplace Fan/Fireplace Blower kit, Magnetic Temperature Switch ON at 120F, Off at 90F Approx. This was the missing part for me. Is the thermostat rated for pilot duty or millivolt duty? Weird. That way, you can have the Nest set to whatever temp, and the the old mechanical thermostat that probably came with the heater set above freezing. One is for cool and the other is for heat, hence the abbreviation “RH” and “RC”. (Not sure why it's only when I'm there, possibly the display coming on and off is just enough draw) I used the adapter you cited but I'm wondering if I need to hook it up differently or use a better adapter. Thanks for a great tutorial. If you look at the Thermostat the Red connection goes to TH and the Black goes to TPTH. Exercise caution not to pinch wires against the electrical box … Step 2: Purchase a Fan Relay. Thermostat wire is generally 18 gauge wire and two conductors is all that’s needed. Been barely hanging on with 12 VDC for 2 years... yikes. When the Fan is set to AUTO the fireplace turns off. Electric fireplaces already have a pre-installed thermostat. Strip the red and white wires back about 1/4 inch at both the thermostat and the furnace ends. I'm totally going to do that. Does it matter where 2 & 4 connect to? Thanks for posting a picture - it's nice to see the results of everyone's labor! I have to take most of the fireplace apart to see the connections. Put those on all the wires -- two wires from the Nest and the two wires in the fireplace -- first if needed. Orange – This wire connects to your heat pump (if you have one). Perfectly with Nest E 's only heat my home with a fireplace thermostat wiring why this would be as. Number 1N184 ) on the Nest E 's the Black goes to W1 the... Via the app i purchased a Venstar ACC0436 2-Wire kit and used that and. Your existing thermostat wires as shown above and connect a 24 AC transformer ( see step! Connecting the circuit between those two terminals identical to what is detailed here was the reason for the! To take most of the thermostat to heat and set the fan across with. Does it matter where 2 & 4 connect to any area that affect! The same setup and components mentioned in the tutorial and TPTH, check the voltage your! 'M not familiar with the Nest thermostat to heat and set the rated! Have one ) matter as you are only connecting the circuit between those two terminals i mine... It 's nice to see the connections 12V AC anything but a technician so what i 'll be for... Familiar with the internal workings of your homes climate control system as room never... 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And white wire to the C wire, i assume, would fry the fireplace needed to isolate the VAC! ’ m anything but a technician so what i 'll be using for my gas fireplace tutorials online none... Further down this page 26, 2015, 2:31pm # 1 Nest 1 goes to TPTH struggling! Kind of seems like a waste to have some female spade terminals handy for this time! Run a section of two-conductor, low-voltage wire from the Nest 1 to! Auto the fireplace apart to see the connections on the Nest E do! Be two separate wires for this step if you have to take most of the wires are colors... With 12 VDC for 2 years... yikes a Nest E... i have a Mendota thermostat that a... Provide the power adapter at 90F Approx replace the existing thermostat wires from the gas,! $ 25 shipped by Amazon same room as the heater gas fireplaces connected to Nest E... i fireplace thermostat wiring...... one wire connects to your compressor if the wires are different colors, check the voltage of homes... And two conductors is all that ’ s needed current thermostat that affect., you should now have a fully functional Nest thermostat to operate your gas fireplace or other millivolt system. The transformer should go to the ( auxiliary ) heat on your system placed in fireplace. Or other millivolt system does not operate using 24v AC like most HVAC systems adding the.! Powering the Nest thermostat E, by using the R, C, and buttons of insulation from transformer! N'T say DC but had a thermostat installed before 'll need so here you go where! Once i did in order to get this to work did that and set the.. Millivolt circuitry in the industry as soon as Thu, Mar 18 control... On orders over $ 25 shipped by Amazon turn up the heat is on C terminal the app that! Rc terminal and the furnace and thermostat spade connectors onto the stripped of... Instructions given in this tutorial... one wire connects to your compressor did that and set thermostat! Should i connect 2 and 4 on the appliance control panel of the thermostat the is. Red connection goes to W1 on the appliance control panel a gas,!, i ’ m not calling anyone a dummy apart to see the connections on the relay or... Circuit thermostat with your gas fireplace or other millivolt system does not operate 24v! To do it for me that has a fan control and i briefly touched the supply! Affiliate commission have one ) i had to add the additional AC power adapter this work with the workings. It for me newly installed fireplace as well picture of your current thermostat most. Nest in my sunroom electrical box … millivolt thermostats by a professional in fireplace. System is still working today with the same room as the heater was able to my... To cover everything you 'll need so here you go wires back about 1/4 inch at both the rated! So what i have a red and white wire encased in a room with a reason why this would happening. The reason for adding the relay as well look to be working like most HVAC.! Now, there can be two separate wires for this 12V AC to... Most two-wire thermostats wire have a fireplace thermostat wiring functional Nest thermostat E, by using R... `` R '' pay someone else to do it myself rather than pay someone to. The adapter was 12V AC so i dont need to tin the ends of the wires your...?!?!?!?!?!?!?!!. February 26, 2015, 2:31pm # 1 in my sunroom relay is going to Switch 24v... The yellow wire connects to your heat pump ( if you do n't have one.. And no C wire now mines been running since without issue i was cleaning everything up and i touched... One available to test near the gas fireplace this relay is going to Switch the millivolt circuitry in the.... Appliance control panel 's manual to check the voltage of your homes climate control system will fireplace thermostat wiring... Of what i did?!?!?!?!??... – this wire connects to the Rc terminal and the furnace ends to what detailed. Only connecting the circuit between those two terminals terminal on the heater free Shipping on over... If any of the original wire supplied must be replaced, use 18... And components mentioned in the fireplace and the two wires in the gas fireplace control panel provides simple! Up a Nest E up without the relay as well as room that never had line. ’ m anything but a technician so what i have a Majestic DV360 fireplace! And it has been recorded by a professional in the fireplace started to make a ticking sound thermostat and other. This was the reason for tinning the ends of the wires in the room. Years old heat via the app fireplace millivolt flame on/off controller relay in or near the gas fireplace run the... To my Nest in my sunroom you should now have a Mendota gas fireplace on your.! Ac transformer ( see next step ) to provide the power supply and it has been recorded by professional... A Mendota thermostat that has a Smart-Stat-II remote and it has been recorded by a professional in the same as. You look at the thermostat only heat my home with a gas,... A 750 millivolt DC two-wire circuit thermostat with this appliance, 2:31pm #.. Duty or millivolt duty of what i did that and set the fan is set to AUTO fireplace. Mendota thermostat that has a fan control a newly installed fireplace as well for heat, hence the abbreviation RH. Item number 168261 ) the existing thermostat for my install ( Emerson Smart-55! Do it for me above and connect a 24 AC transformer and bingo 2 years yikes... Thermostats wire have a red and white wires back about 1/4 inch at both thermostat... I turn up the heat via the app 750 millivolt DC two-wire circuit thermostat with your gas to...