For questions regarding a central heating system for the home. The system consists of a furnace or boiler and a method to distribute the heat throughout the home.

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2
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1answer
34 views

How do I connect a C wire to an Utica PEG112CDE steam boiler?

I want to upgrade my old mercury thermostat that I currently have to a newer programmable thermostat. This little DIY project is for my first late 1920's home that I recently purchased. I currently ...
1
vote
1answer
23 views

How can I tidy up a hole in drywall that has pipes coming through it?

We recently bought our first house and have discovered that the previous owners replaced a radiator with a heated towel rail that's plumbed into the house's central heating system. The issue is that a ...
2
votes
1answer
2k views

What should I do about this Alpha HE CB33 Boiler pressure error condition?

I have an alpha he cb33 boiler which has stopped working this morning. Yesterday I removed a radiator for cleaning then put it back on and re-pressurised the system. It was working ok last night. ...
1
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2answers
4k views

Why does my central heating system comes on on its own accord?

Can anyone tell me why my central heating comes on by itself: the radiators get hot and stay hot for around 1-3 minutes then the system turns back off again. This can happen any time throughout the ...
2
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2answers
430 views

Furnace Draft Inducer Repair: is previously installed back plate necessary?

I'm replacing a non-functioning draft inducer on the Goodman furnace in my house (GMP075-3). The previous inducer was mounted with a sheet metal back plate between it and the wall of the furnace. ...
0
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1answer
125 views

Why does the blower in the attic vibrate during heating when it is really cold?

We have a Carrier heat pump system in our home, and the blower is located in the attic. When it is especially cold, the blower runs on high (there are three levels: high, medium, low). During this ...
2
votes
1answer
22 views

Why is one radiator TRV in the house missing the control?

My house had a new gas central heating system fitted, with new radiators, before I moved in. One radiator (in the tiny downstairs WC) is missing the control knob for the TRV, and is set to the highest ...
2
votes
1answer
49 views

Why does my heat pump keep triggering the high-pressure cut-off?

Our Rheem heat-pump is on the fritz. It keeps triggering the high-pressure cut-off on the outdoor unit. We've had problems with this happening before, but only when the outside temperature got to ...
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0answers
33 views

What material to use to clog previously cut central heating pipes

I used to have a central heating system which was never in use for years, because it couldn't be connected to central pipe inside other building. Last winter I finally dropped water from it and cut ...
0
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3answers
2k views

Why is my Central Heating taking so long to heat up?

I'm in the UK with a small modern, well insulated, double glazed home heated by a traditional gas boiler. My heating had been achieving room stat temperature within 30 minutes but is now taking at ...
0
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2answers
50 views

Twinned units w1 and w2

I have twinned heating units as w1 and w2. The first unit to come on needs to be replaced; but, until then I need to know how to get the system to heat better. The problem is the fan comes on on unit ...
1
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3answers
82 views

A/c makes the lights turn on and off! No Joke!

The lights on the first floor, upstairs bathroom and upstairs Laundry room won't work. The breakers did NOT pop The air conditioning was running this morning but is not working now. When the ...
1
vote
1answer
87 views

What is the best way to retrofit an underfloor heating system in a concrete slab?

I have a UK bungalow that I am renovating. I would like to replace the current heating system (radiators, natural gas boiler) with an underfloor heating system. I think the cost of digging up the ...
2
votes
4answers
8k views

Why can't I bleed my radiator?

I am living in an apartment in Belgium. My bedroom radiator is basically useless; it's about 1m long but only the left 10cm ever gets warm. I have been told to bleed the radiator by opening the valve ...
1
vote
1answer
206 views

What causes a HVAC control transformer to overheat?

I recently replaced my 24 volt HVAC control transformer. The outside unit started up including the air handler and ran for maybe 10 minutes. After the units shut down I noticed that the transformer ...
1
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1answer
85 views

Can I change my standard thermostat to a Wifi one?

I have a (quite standard) TR-010X T6360A thermostat that looks like this: And this is the wiring diagram: Can I install the Heatmiser PRT-TS WiFi Touchscreen Programmable Thermostat? This is the ...
1
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2answers
357 views

What to do about different rooms in the house being a completely different temperature?

I moved into a 30 year old home last December. There is a problem with the HVAC. I have included a very crude drawing of the floor plan The problem is that I can't maintain a comfortable ...
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0answers
14 views

Weather compensation, zoning or both?+ minimum output

I am renovating my 4 bed Victorian house with solid walls. We are about to replace the boiler and I am looking at a Worchester bosh 36kw cdi compact with WF100 weather compensator. I also want to ...
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0answers
43 views

Are wall air vents a potential problem?

A house I'm looking at has A/C vents in the walls, rather than in the ceiling or floor. I've never lived in a house with air ducts in the walls. Can I expect to have problems? The house was built in ...
0
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1answer
2k views

Gas furnace kicks on then off frequently

A few times in the past week I will wake up to my furnace turning on, hearing a click when it tries to ignite, then turn off. This will happen for a couple minutes before the furnace quits trying. ...
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0answers
38 views

Honeywell wireless thermostat and central heating controler problem

We have a Honeywell wireless thermostat and central heating controller. It is set to maintain a temperature at 21c between 8 and 10, and then between 4 and 10. In the other periods, it is set to ...
0
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1answer
52 views

I have just reset furnace due to a trouble code, what should I monitor or re-do over the next few days?

My furnace was throwing a trouble code. The code was 31 and for my manufacturer (Bryant) and others thats is a pressure switch code. I was able to resolve this code and get my heat back on simply by ...
7
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2answers
3k views

Why are almost all of my house's HVAC floor registers placed near exterior windows?

My current house is a single story built over a crawlspace and all the HVAC registers are in the floor. In all of the larger rooms, at least one (and usually more) register was placed near an exterior ...
0
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1answer
110 views

Would connecting the downpipe to a gas boiler inlet save energy?

I have a condensing gas boiler for tap-water and central heating. Not very far from the inlet there is a downpipe outlet for the sewer. Since this smelly pipe is partially filled with the same ...
1
vote
1answer
121 views

What to do first in a house with poor thermal performance and high energy bills

I just moved into a house and am a little bit disappointed in its thermal performance so far. It's winter and cold outside, and the furnace heats the house up pretty quickly, but then the house gets ...
3
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1answer
3k views

What does C, W, Y and S Plans mean when talking about central heating controller?

I have seen control systems sold as C, W, Y, or S plan, what the difference? Are there any other common setups (These are water based CH systems, so are unlikely to be used in the USA)
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3answers
326 views

Combi boiler doesn't realise it's already lit

I have an Ariston Eurocombi (A23). The problem is it doesn't realise the flame is lit. When I start it up and cause demand (run hot tap or turn on heating) it fires up the flame correctly, however, ...
0
votes
1answer
228 views

When should HVAC returns be opened and closed?

My Pennsylvania house was built in the early 90s, has central heat (natural gas) and central A/C, and most rooms have pairs of closable air returns on the wall near the floor and ceiling. I've been ...
1
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1answer
153 views

Radiators don't heat up evenly, and am missing an Expansion Vessel. Do I need it?

I have a new Worcester 40CDI Regular Boiler that does not come with a built-in expansion vessel. I just discovered that the installer did not install an external expansion vessel either. For HW, I ...
4
votes
3answers
7k views

Why is it taking so long for my house to heat up?

Firstly, I should probably mention that I'm in the UK... My wife and I bought a house new from a builder over 9 years ago and have had no problems whatsoever with our central heating system in that ...
1
vote
2answers
675 views

Why aren't my radiators heating up?

Two of the eight radiators in my house get only lukewarm. All eight radiators have been bled. The inlet pipes to the two dodgy radiators are red hot so the problem appears to be with the valves. I ...
1
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2answers
781 views

Can I use a 40 lb propane tank just for my central heating?

I want to know if I can use a 40 lb propane tank for my central heating. I have not tried anything. I don't want to put natural gas in, just want the propane gas. If someone can answer that, I want ...
7
votes
4answers
8k views

Is it an easy task to replace a wall thermostat?

As above, is it an easy DIY job to do this safely? In my research into the above it has become apparant that I should consider replacing the old thermostat with a programmable one for energy savings. ...
0
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0answers
315 views

What might cause the heating to get “stuck” off regardless of room thermostat?

What could cause my heating system to get "stuck" in a state where the boiler will no longer come on in response to the room thermostat, and I can only seem to "fix" it by turning the property power ...
2
votes
2answers
66 views

1971 D615MH Coleman Furnace,

I have a Coleman D615MH furnace. It will not kick off. I have to turn both breakers off. I just replaced the thermostat, thinking that was it. I turned the breakers on & it was still running. ...
3
votes
2answers
417 views

Can upgrading my boiler save me money?

I've just received my annual gas usage statement. It came as a surprise to me that I'm using almost the average gas consumption in the UK. The average is 16,500kWh and I used 15,000kWh over the year. ...
2
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0answers
79 views

Why would the input gas pressure fall when the central heating boiler calls for heat?

Since the annual service of my traditional gas boiler the house takes considerably longer to heat up. The boiler flame no longer seems as "fierce" as previously. I'm told the burner pressure and ...
0
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0answers
401 views

maxipod heat store problem

I have a heating system using a 300litre heat store tank. It is connected to solar as well as oil and a solid fuel stove. A coil provides mains pressure hot water. Oil & solid fuel flow pipes go ...
3
votes
2answers
140 views

My hot water boiler failed **On** - what would cause that?

I arrived back from holiday to find the house like a sauna, everything in the kitchen too hot to touch, cutlery scalding hot etc. My central heating was on full, and must have been for some days. ...
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0answers
58 views

Does my Central Heating system need balancing?

The difference in flow and return temperatures at each radiator varies between 2C (lowest) and 7C (greatest). Although all of my radiators get hot I understand the desired differential is 10-12C. Do ...
7
votes
1answer
534 views

Why did an HVAC installer add this PVC pipe?

We recently had a VERY old central heating furnace replaced and I noticed that the HVAC installer added the following PVC pipe shortly before the inspector arrived: The metal vents were already ...
1
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0answers
85 views

What is the effect of differences in flow and return rates in a traditional gas central heating system?

Would a smaller or lower differential in flow and return rates in a traditional gas boiler "Y" central heating system make the house take longer to heat up? Is there any way to adjust these flow ...
2
votes
0answers
106 views

Why aren't my radiators heating up after I replaced a rusted through pipe?

We had a bit of corrosion in an old pipe and it started leaking and losing pressure and so I drained all the central heating system (radiators), replaced the pipe and fitting. It was awkward and the ...
0
votes
1answer
6k views

How can I stop my radiators “clicking” when they're turned on or off?

I have a central heating system on a timer, and whenever the timer turns on or off, for around ten / fifteen minutes, some of the radiators in my home make regular clicking noises, kinda ...
2
votes
1answer
176 views

What to look for in a new water radiator?

The water radiators I have under each window are 50 years old, and I would like some new ones. They measure HxLxD 50x100x20 cm. The new ones I would like should be as thin as possible. I live in an ...
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vote
2answers
1k views

What could cause a clicking sound in an underfloor heating controller?

I have a underfloor heating system installed in my apartment. Each room has a Uponor T-37 thermostat, hooked up to C-35 controller. The system is about four years old and recently I have noticed a ...
0
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0answers
467 views

What could cause my radiators to go cold when the hot water is turned on?

when only heating is selected on my program timer the radiators all work fine and are hot. But when both heating and hot water are on the water gets hot but all the radiators go cold. When the hot ...
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vote
2answers
3k views

Why does my central heating system get so much air in it?

We have an old system with a header tank in the loft. Over the last few days I have bled the radiators many times. However one section: Took a few hours until any water got to it, Its radiators ...
2
votes
1answer
697 views

How can I stop my house from waking my wife up every day in the winter?

I'd like to preface this post with the fact that I'm a complete diy amateur. I may say stupid things, or things that make no sense. Please feel free to correct me as I'm always open to learn. So, ...
4
votes
1answer
245 views

Is it cost effective to close some heating vents?

I have a central natural gas forced-air furnace in a small (1500 sq. ft.) home. I have an unfinished main room downstairs and a room for storage upstairs that's not being used as a bedroom. Is it ...