Is this what they call a flame rollout? On the left side where the flame comes out, some of it is shooting backwards and coming out on the back side of the pipe.

I'm looking for a digital humidistat with 1% incremental setting. Is there any that anyone knows exists? My new humidifier came with a humidistat - the HumidiORO H6062, with 5% incremental setting. I would like a little more accuracy.

I have the 18000 btu mini split haruzake black and white which has trouble cooling 30m2. What can I do? There are 25c outside. It ran for the last 5 hours on 25c and it brought down the temperature from 28.5c to 27 but not lower. It seems it's still running the highest speed. I read that it moves only 712m3. To me It seemed a little bit low for a 18000. In the summer when there were 37c outside it was on turbo not bringing the temp less then 29c.

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Can anyone give me an idea of replacement cost for a gas furnace for about 4,000 square foot home? And, any experience with whether HELP offers a good replacement option?

Why would you ask the customers if their indoor fan works on an air conditioning before arriving at the customers house? At what major component would you expect to find the problem? Please explain why?

I've had a 5ton (20kw backup) heat pump installed last spring. Heil regular heat pump with a variable speed air handler.

I have several times smelt a mild burning or hot smell. Also, the air at the registers is warm, like really warm. I have a hunch that the heat strip is coming on in addition to the heatpump on a regular basis. Even when its not in recovery or defrost cycle.

Is there an easy way to confirm or test this suspicion at the stat? Do I need to take pictures of the wiring in the air handler panel and stat for you to confirm or deny?

Just trying to save electricity. Thanks.

I purchased a condo with a new Carrier HVAC installed 6 months ago. Coil replaced twice and still freezes up. Previous owner has 2 year no lemon guarantee. Does that pass to me as new owner? How many attempts to fix until it qualifies as a lemon?

I had a new gas furnace HVAC (RunTru by Train) installed earlier this year. It worked fine all winter, spring and summer. About a month ago, I started getting very humid air in my apartment, to the point it was fogging up my mirrors. I bought a humidity meter, and it's been as high as 78%. It jumps up as high as 20% in humidity in less than 5 minutes when running the heat.

My landlord hasn't been able to figure it out. They gave me a giant humidifier and that's the only thing that works to get the humidity out when I use the heat. A few things to note:

1. The company that installed the unit said the unit is running properly at 17% humidity
2. Temperatures outside and humidity low or within the normal range (60's-70's outdoor temp)
3. I've lived here over 15 years and humidity has never been a problem before now
4. The dehumidifier has been able to get the humidity levels down to 35%
5. I have a concrete slab foundation
6. I have a CO detector and there have been no issues with that

It's driving me crazy and affecting my health. My landlord does not make fixing this a priority, as it's been over a month now. If anyone can help me figure out the source of this issue, I would be eternally grateful.

My boiler is 20+ year old and out of warranty. I took a picture of the heat exchanger when it was serviced. Are the circled areas cause for concern? It looks as if pieces are missing.

It certainly can't be water tight since you are basically sliding a probe with a wire down through ?

Hi Everyone, Looking for some advise with my new system. We had a heat pump with a furnace installed a couple of weeks ago. We have a 2 stage lennox high efficiency 2 stage gas furnace #EL296UH070XE36B paired with a bryant  #38MURAQ36AB3 heat pump, bryant #40MULAQ36XBX cased evaporator coil and a #KSACN1101AAA controller with the associated thermostat, which is where my question comes in. 

Some folks from the company we picked said that an ecobee can be used with the controller while the sales folks are saying we must use the associated communicating thermostat.  The thermostat seems very buggy, it has a temperature swing of 2-3 degrees (won't kick on until 66 or turn off until 73 when set to 70).

The KSACN1101AAA control board seems very similar to that in the 40muaa which does allow for the communicating unit or an ecobee. Does anyone have advice with using an ecobee with this set up. I plan on pushing my installer to do this, but want to make sure this is doable prior to starting this. 

Thank you for your help!

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1920s mill house retrofitted with central heat/air. Each room has 2 vents but only one central return in the entire house. We like to sleep COLD so we added a window AC to just our room and keep it on 64F with the door closed (we also like to close the door to keep it as dark as possible). We only run it at night for sleeping. Problem is you can't run window AC when it's below 60F outside, so during the winter when the heat is on (so everyone else in the house isn't cold) and the door closed the room gets very warm and it's difficult to sleep.

How can we cool this one room at night during the winter? Would blocking off the vents so the heat doesn't enter the room help? We've already got a vornado fan and the fan from the window AC going as well but they aren't helping much. We do have a "return" on the door in the way of a cat door as well.

I can’t find anything in the guides or online. The fan cycles on and off about every 3 seconds. The unit is giving heat. Anybody seen this before?

Have a 30 year old boiler for a shop with infloor heating. Was wondering if there was something out there newer and more efficient?

I am doing a major remodel and want to get rid of my big furnace and replace it with something smaller. I need a gas up flow. I do have a good size crawl space where it could go. Any suggestions on make and models that would work that won't break the bank? Suggestions on what to do with old furnace? It still works great

I am doing a major remodel and want to get rid of my big furnace and replace it with something smaller. I need a gas up flow. I do have a good size crawl space where it could go. Any suggestions on make and models that would work that won't break the bank? Suggestions on what to do with old furnace? It still works great

A rectangular metal duct coming from my furnace in the basement makes loud popping sounds as it thermally expands and contracts. Is it against any code to replace it with a flexible duct to eliminate these sounds?