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.
2
votes
0answers
27 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 ...
1
vote
2answers
451 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 ...
0
votes
3answers
108 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 ...
2
votes
1answer
640 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. ...
4
votes
2answers
2k 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 ...
0
votes
1answer
174 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
129 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 ...
0
votes
0answers
71 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 ...
7
votes
1answer
1k 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 ...
1
vote
2answers
420 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
votes
0answers
168 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 ...
1
vote
2answers
1k 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 ...
1
vote
1answer
192 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, ...
1
vote
1answer
191 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 ...
4
votes
1answer
171 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 ...
2
votes
0answers
93 views
Are w1 and w2 both energized during a second stage heat call from the thermostat?
Short version: does two-stage thermostat always close W1 circuit when it closes W2 circuit, or they might be closed independently?
Long version:
I have two-stage furnace, currently connected to older ...
1
vote
0answers
24 views
How can I fix a single radiator that is not providing heat? [duplicate]
Possible Duplicate:
Why is my radiator not getting hot water or have air in it?
All of my radiators are working, apart from one. There is heat in the pipe attached to it , but the radiator ...
1
vote
1answer
380 views
Cheaper to run central heating sporadically high or constantly low?
My central heating has a thermostat dial ranging from 10 to 30 degrees Celcius. I'm wondering whether it's likely to be cheaper to crank it up to 30, and turn it on for, say, an hour, 3/4 times per ...
0
votes
1answer
278 views
Is it possible to fix a leak in PP-R piping by injecting some type of substance?
I have a central heating system based on PP-R piping and radiators. The PP-R piping goes under the floor. The problem is that the pressure is droping 0.2 atm / week and I am sure there's a leak ...
2
votes
1answer
190 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. ...
1
vote
1answer
137 views
Why would a newly installed radiator only heat when on constant bleed?
We have changed a gas central heating radiator. It is the last radiator in the circuit. It will not communicate with the boiler and only brings hot water into the pipe leading to the thermostat when ...
1
vote
2answers
140 views
Can anyone identify this heating timer?
So, It's getting quite cold now and my central heating is just going on and off randomly. There is what seems to be an unbranded heating timer below the combi-boiler (Baxi). However I have no idea how ...
1
vote
2answers
338 views
What is correct way for radiator plumbing/connection in multi-story flat
We have some problems with central heating in our multi-flat house and I would like to understand something. Some flats have old-style radiators, and almost every flat has different way to connect to ...
0
votes
1answer
121 views
Can you identify this timer panel?
We have these programmable timers in our home for the Underfloor heating in the bathrooms.
There are no manufacturers markings on the panel, and they're not intuitive to program.
Anyone able to ...
1
vote
2answers
10k views
Although my hot water works, why won't my radiator come on?
As above, the hot water works but the radiators do not come on. It's an old gas powered central heating system. We're thinking it's the wall thermostat at fault but is there anything else it might be?
...
2
votes
2answers
530 views
Using a solar system with a condensing boiler for the central heating instead of tap-water?
According to the manual of my AWB ThermoMaster 2HR 28.02WT Condensing boiler, it is compatible with a pre-heating solar system for tap-water only. It even has extra facilities to ensure that the ...
2
votes
3answers
1k views
How can I improve hvac air flow to my attic?
Two years ago I converted the attic of my 1.5 story house into a livable space. It had no HVAC ducts going up, so I ran some coming from the basement where the furnace is.
Air flow to the attic via ...
4
votes
2answers
1k views
Does a software-controlled central heating programmer and thermostat exist?
I have a central heating programmer in the airing cupboard (where the hot water tank is). It allows a couple of separate schedules for water and heating separately, and also for manual override when ...
2
votes
1answer
282 views
What would cause the bottom half of a radiator cool down after heating up?
I have a one pipe system and just had a new Vertex vertical radiator fitted. It's the last radiator in the circuit. The radiator I had replaced for the vertical radiator worked like a dream for the ...
2
votes
1answer
579 views
When bleeding radiator why does the same amount of water go out through the overflow?
I have a really old central heating system. It was working fine until a plumber bled the whole system to replace a radiator. Since then we have had to replace the pump and the system doesn't seem to ...
0
votes
0answers
147 views
How to add inhibitor to old Potterton Kingfisher central heading system
I have just replaced a radiator and about 6m of pipework in a room we are remodelling. Works fine.
The radiator instructions state that the system should be flushed with a cleaning product then a ...
8
votes
1answer
474 views
How do you trigger the hvac with wiring only?
I have a HVAC that has the usually wiring C R G W Y
Pinouts
What wires do I need to connect to turn on Heating?
What wired do I need to connect to turn on the A/C?
Is there a risk of damaging any ...
1
vote
1answer
125 views
How to bind/pair a Sunvic wireless radio heating controller to its receiver
I have a Sunvic wireless controller and thermostat with a receiver base station in the boiler room. It became detached and I'd like to reconnect it with the controller unit.
Note: this is a question ...
3
votes
2answers
809 views
Can a cold air return be shared by two rooms?
Can I use the same cold air return duct in a wall between two rooms? For example, the duct would run down the wall between the studs and then could I put the register at the bottom of the wall on both ...
5
votes
2answers
958 views
What materials can be used to create cold air returns?
To make a cold air return duct in my wall, can I simply use the studs and drywall to create the duct or do I have to use sheet metal also?
4
votes
1answer
139 views
3
votes
2answers
420 views
Where can I find central heating system with radiators?
Coming from Europe, I am used to radiator heating systems and thinking about putting one into a fixer-upper house I intend to buy. Where can I find such a system in the North-American market?
3
votes
1answer
2k views
Can I convert a radiator to radiant floor heating in a room?
I am purchasing a new home, and designing some renovations to several rooms. The house has a gas boiler and radiators throughout the house. For the kitchen and upstairs bathroom, I will be putting ...
1
vote
1answer
141 views
Wood heating - Problems with power failures. Need some advice
My sister uses wood heating in here house.
Her heating system has temperature control but of course does not work without electricity.
If electricity goes off the temperature can grow ...
5
votes
2answers
4k views
Why do the radiators in my home heating system get extremely hot?
I have a standard British heating configuration at home - there is one gas heater that provides hot water both for the boiler (and bathroom etc.) as well as for central heating. There is a small ...
2
votes
4answers
319 views
How do I fix radiators that come on at different times?
We have radiators in all rooms but the ones in the bathrooms come on at different times to the rest of the house. This is particularly annoying when getting up at 6am and stepping into a freezing ...
4
votes
1answer
1k views
Why isn't water coming out of a radiator in my freshly pressurized system?
I live in an old Victorian with three stories, plus a basement and an attic. I tried to bleed the radiators in preparation for turning the heat on, but was unable to get any water out of the radiators ...
4
votes
1answer
486 views
Should central heating pipes through internal brickwork have insulation?
My house has old (large diameter) steel central heating pipes. These travel through the basement before passing up through the house. My concern is that when they pass through internal walls they are ...
4
votes
1answer
524 views
Why are steam radiators used in the USA?
In the UK, we use water radiator systems when the boiler heats the water to about 70°C, this allows the boiler to get most of the energy out of the gas (or oil) by condensing the steam you get ...
6
votes
3answers
240 views
How can I locate the pump in a wet open-vented central heating system?
Lost: One Central Heating Pump. Reward offered (in reputation points ;)
I have a wet open-vented central heating system, and I've turned it on after six months to find the radiators aren't getting ...
2
votes
2answers
531 views
How do I lower a cold air return from the ceiling for a basement rental?
I am living in the basement level of a rental unit with forced air heat. There are 9 heating vents and one cold air return, all of which are in the ceiling. The air isn't mixing very well resulting ...
2
votes
1answer
791 views
How do I work out the CH boiler size we should have?
How do I work out the boiler size we should have?
(I have been told we need a 18KW boiler for our large 3 detached bedroom bungalow in the north of the UK, is this really powerful enough?)
2
votes
0answers
185 views
Why won't my condenser turn on when I run my heat pump?
I have a York Affinity condenser. When I run my heat pump, I expect it to turn on somewhere in the cycle but it doesn't. It generally does this once a year. The usual fix is to cycle the power of the ...
5
votes
3answers
782 views
Why do I have a cold draft from a return air vent?
I have a draft occurring in my 2 story home, usually on windy days. The main floor is fine, but in the master bedroom on the second floor, there is cold air entering the room from the air return vent. ...
4
votes
1answer
245 views
What does a manifold do in an underfloor heating (UFH) system and why do they cost do much?
I am trying to understand what the manifold does in a UFH system. It seems to just be an overpriced collection of T joins connect in a row with a basic valve on each.
What am I missing?
