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Furnace keeps running when set at 78 but only gets up to 75....we have an outdoor wood burner that is hooked up to it and that is our heat source....

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  • 603 Answers

Sometimes thermostat settings are not right on the money. In your case it could be that the furnace is accurate but the house temp could be lower due to a number of reasons. People going in and out, bad insulation, window drafts, or just the thermostat being out of calibration. I think you are just fine with only a 3 degree difference. GOOD LUCK FRIEND.

Posted on Nov 18, 2014

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Posted on Jan 02, 2017

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SOURCE: can i hook up a

I would check with your local building codes before investing any money with this issue.
Most companies will do free or cheap onsite bids. They should be able to give you a complete break down of what you might need and the related costs.

Posted on Jul 03, 2008

jumptrout51
  • 3361 Answers

SOURCE: Temp set for 78, fan continues to run, this am temps were at 64

You should replace your thermostat.

Posted on Sep 17, 2009

  • 587 Answers

SOURCE: Rheem furnace fan runs after the burner shuts down

check your limit switch

Posted on Dec 30, 2009

  • 1 Answer

SOURCE: Carrier weathermaker sx 58 furnace

I have serviced these furnaces for 20 years and I can tell you most of these models did not have diagnostic lite on them. (although some did, especially if the control board has been replaced) The problem is most likely a bad 3 wire pilot. This will cause exactly what you describe. 2 things to consider though. 1, If you were to replace the pilot don't get a cheaper knockoff. In my experience these do not last long at all. Get the right one from a carrier dealer. It will cost more but be much more reliable. 2 What is the condition of the secondary heat exchanger? Most if not all of the sx series had issues with the secondary heat exchangers rotting out and leaking. If the furnace is out of warranty you would be much better replacing the furnace as the cost of replacing the secondary heat exchanger will probably be almost the same as a new furnace. ( those babies are EXPENSIVE!)

Posted on May 01, 2010

shastalaker7
  • 1515 Answers

SOURCE: Hi I have an xl80

Hi, sounds like you have a problem with the heat anticipator in the thermostat. If you replaced the fan limit, and with it running that long after the burners shut down, it would be in your stat. If it fires up after resetting breaker, was the stat set to call for heat? If not, the stat is faulty. If you remove the front to get to the stat wires, take a jumper wire and jump from RH or RC to W. Heat will start. Let it run for a minute or so and remove wire. If the fan shuts down with in a min. or so, you will know it was the stat. Good Luck and let me know the out come!
Shastalaker7
A/C, & Heating Contractor

Posted on Feb 11, 2011

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Put in a second t-stat to run just my blower on my


To avoid all sorts of wiring problems use only one two stage heat thermostat and wire outdoor boiler to first stage of heat or disconnect white wire from original thermostat and run 2 wire thermostat cable (white and blue , Heat and common to control outside water furnace control ) from original furnace to outdoor 24 v furnace relay .

Oct 01, 2014 | Heating & Cooling

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How to Hookup Your Outdoor Wood Boiler


You just bought or a thinking of buying an <span style="font-weight: bold;">outdoor wood boiler.</span> How do you integrate that boiler into your existing <span style="font-weight: bold;">home heating system</span>? The guy selling you the boiler wants the sale and tells you that hooking it into your system is very simple.<br /><br /><span style="font-weight: bold;">Outdoor wood boilers </span>come in many shapes and sizes. For the most part bigger is better for these things. The next thing you need to consider is whether the <span style="font-weight: bold;">boiler is an open or closed system</span>. It does make a difference in the way it gets hooked up. <span style="font-weight: bold;">Closed systems</span> can be hooked right up to your <span style="font-weight: bold;">existing boiler system </span>in a <span style="font-weight: bold;">primary secondary configuration</span>. This means that the wood boiler circulates to two tees in your home system and the home system circulates the water through the home. The two waters mix through the tees.<br /><br />If your wood boiler is an <span style="font-weight: bold;">open system</span> then you need to install a <span style="font-weight: bold;">stainless steel flat plate heat exchanger </span>to divide the two waters. The hookup of the <span style="font-weight: bold;">heat exchanger</span> is not that hard if you follow the instructions properly. This heat exchanger is very effect in<span style="font-weight: bold;"> transferring the heat</span> from the wood boiler to the inside heating system. It also keeps the water of the<span style="font-weight: bold;"> inside system pressurized and isolated.</span><br /><br />If you are installing your outdoor furnace to a <span style="font-weight: bold;">hot air heating system</span> then you need to <span style="font-weight: bold;">buy a coil</span> similar to your car radiator to install in the plenum on the supply side of your <span style="font-weight: bold;">existing hot air furnace</span>. To this coil you will <span style="font-weight: bold;">hookup the water pipes from the outdoor boiler</span>. The water running through the coil will heat it up so that the air going through from the <span style="font-weight: bold;">hot air furnace </span>will be warmed. The water hookup for this style of heat is very simple, but the <span style="font-weight: bold;">electrical hookup of the blower, pump, and circulator </span>may not be as simple. You may need someone with a good electrical knowledge to make everything happen in the right sequence.<br /><br /><span style="font-weight: bold;">Outdoor wood boilers can heat your home effectively </span>if they are <span style="font-weight: bold;">installed to your existing heating system properly</span>. If they are installed properly you will notice no difference in the heating of your home. It will be <span style="font-weight: bold;">warm and comfortable.</span> Make sue that you do your research properly before trying to <span style="font-weight: bold;">install your outdoor wood boiler.</span>

on Feb 21, 2011 | Heating & Cooling

Tip

Outdoor Wood Stove Hot Air or Hot Water


You're getting a new wood stove and you have many decisions to make. Other than brand, you need to decide whether you will use hot air or hot water to get the heat from the wood stove to the living space.

If you have a hot water heating system already installed then you obviously need to have a water stove. If you are thinking about what to install in a new home or already have hot air then you need to consider what will be the best option for you.

Now if you are installing a new system then you want to go hot water. That is by far the best way of heating and will be the best way to heat using an outdoor wood stove. Hot water heating is one of the best ways to get great heat transfer from the fire to the water to the air.

If you have hot air heat and want to heat with wood then you can install a wood hot air furnace, and set it beside your existing furnace. The ductwork will have to be reworked to get the heat from the wood furnace to the existing ductwork. Or you can install a coil into the ductwork on the supply side of the furnace, for the water to run through from a hot water wood burner. This is probably the best way to heat if you have a hot air furnace. Installing the hot water coil is a very simple process and the piping is fairly easy to hookup.

Hot air wood furnaces are almost always a inside the structure appliance, which means that you have the mess of the wood and the ashes inside. This dust and dirt mess is something that is much better kept outside where it can be cleaned up much easier.

Bottom line here is that you want to use a hot water wood burning stove if you can. You will be much happier with the heat that you get from burning wood.

on Dec 08, 2009 | Heating & Cooling

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I have a Johnson aire ease ultra 90 gas furnance. I also have a outdoor wood furnance that has its own thermostat. On the original thermostat I turn the blower in the on position. I then set the outdoor...


I would first eliminate one furnace from the equation, the exterior wood furnace... turn its tstat down. Will the gas furnace then operate normally? Can you run the blower manually, as in summer mode? Make sure your filters are clean also... that can sometimes overload the blower.

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How to Hookup Your Outdoor Wood Boiler to Your Existing Heating System


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Outdoor wood boilers come in many shapes and sizes. For the most part bigger is better for these things. The next thing you need to consider is whether the boiler is open or closed. It does make a difference in the way it gets hooked up. Closed systems can be hooked right up to your existing boiler system in a primary secondary configuration. This means that the wood boiler circulates to two tees in your home system and the home system circulates the water through the home. The two waters mix through the tees.

If your wood boiler is an open system then you need to install a stainless steel flat plate heat exchanger to divide the two waters. The hookup of the heat exchanger is not that hard if you follow the instructions properly. This heat exchanger is very effect in transferring the heat from the wood boiler to the inside heating system. It also keeps the water of the inside system pressurized and isolated.

If you are installing your outdoor furnace to a hot air heating system then you need to buy a coil similar to your car radiator to install in the plenum on the supply side of your existing hot air furnace. To this coil you will hookup the water pipes from the outdoor boiler. The water running through the coil will heat it up so that the air going through from the hot air furnace will be warmed. The water hookup for this style of heat is very simple, but the electrical hookup of the blower, pump, and circulator may not be as simple. You may need someone with a good electrical knowledge to make everything happen in the right sequence.

Outdoor wood boilers can heat your home effectively if they are installed to your existing heating system properly. If they are installed properly you will notice no difference in the heating of your home. It will be warm and comfortable. Make sue that you do your research properly before trying to install your outdoor wood boiler.

on Dec 03, 2009 | Heating & Cooling

1 Answer

Our furnace keeps shutting down soon after burner ignites inducer motor stays running wont heat until reset switch behind inducer motor is pushed


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Aprilaire


Commonly outdoor wood boilers use a hot water coil mounted in the ductwork above your furnace. In this application the Ruud furnace is still using its blower assembly to circulate the warm air from the boiler to your home. If this is the case. Have your heating guy install a #50 relay on the furnaces blower motor to activate your much needed humidifier. If this is not the case and your Ruud furnace is totally independent of the boiler. Still install the #50 relay in the furnace and manualy activate the fan only feature on your thermostat.
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HVAC Teacher

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