Questions tagged [radiator]

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2answers
9k views

Why is noise coming from our hot water radiator even when it is off?

I own a condo and the heating is from a hot water radiator. We have a hot water radiator at the living room and there is quite a noise (some clanking but mostly like water running on a pipe) coming ...
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1answer
293 views

How can I make the radiator heat my room more efficiently?

In my room at Uni my radiator gets really, really hot, yet the room stays pretty cold. Is there anything I can do to make it more efficient without losing my deposit?
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1answer
238 views

Why are only 2 of the 14 posts in my radiator heating up?

I recently changed from oil heat to gas. All the radiators work in my 2 story home except for one on the first floor, which heats 2 out of the 14 posts. I changed the valve, which didn't work. Then I ...
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1answer
940 views

Water supply valve to closed radiant heat system on or off?

I have a closed radiant heat system, meaning a boiler with a pump, radiators and piping. After the intake valve, there is a pressure reducer and a backflow stopper (both bell shaped). Yesterday, ...
4
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2answers
39k views

How long should water come out of a radiator whilst I bleed it, if the radiator is isolated?

Trying to isolate a leaking radiator. I've closed the locksheild valve by turning it clockwise until it tightened and set the thermostatic valve to 0. I've just tried bleeding the radiator to check ...
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3answers
9k views

Why don't my Radiators get hot?

When I turn on my heat, the pump attached to the boiler comes on but the pipes don't get hot and the radiators never do either. I've bled them and believe they are hot water radiators (since there ...
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0answers
94 views

Why did my radiator stop heating after turning it down for a while?

I turned down my radiator the other day & now there is no heat in it at all. I've bled it with no success. The intake pipe at the other end of the radiator is warm but the radiator itself is not. ...
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0answers
213 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 ...
4
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1answer
359 views

How can I run plumbing from house to a nearby new office 1.5m away?

I am building a new office next to the house; it is about 1.5m away. I need to run, from the house's upstairs bathroom, 1 hot, 1 cold, and radiator with return (all of which I believe are 28mm to ...
3
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2answers
862 views

How can I replace the bleed plug for my towel rail?

I have a very similar type of radiator as this: However doing a bathroom refit, I have somehow lost the radiator bleed plug which is shown in the picture above. So if I turn the radiator on, it ...
4
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2answers
70k 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 hollow-...
4
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1answer
4k views

How tight should a Maid-o-Mist steam valve adjustment screw be?

I have a single pipe steam heat system with radiators. To use this system I use the Maid-o-Mist brand valves. These valves come in different sizes. The website provides a nice diagram about what ...
3
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2answers
5k views

How can I stop heat loss due to an uninsulated porch?

I have an enclosed porch with very little insulation, it is typically very cold in the winter. However, there is a radiator in the enclosed porch. I have a gas boiler heating system in the house. I'...
2
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1answer
190 views

Is there a way to make a thermostat based heating system more accurate through either adding probes or hacking?

In my Brooklyn apartment, heated via steam radiator, my thermostat is in the unheated hallway between all the rooms. The temperature it reads is often different, than both the rooms with heaters and ...
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0answers
301 views

Why isn't water running through our radiators?

We had a plumber in today to bleed our rads. He also changed the batteries on the thermostat and fiddled around with the boiler. Since he left the temperature has dropped dramatically and he's refused ...
4
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3answers
11k views

How do I remove the head off this Giacomini thermostatic radiator valve?

How do I remove the head off this Giacomini thermostatic radiator valve?: Click for larger view I was expecting part of the white bit to twist off easily, to reveal the inner pin on the valve. It ...
2
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1answer
1k views

How to remove radiator pipe and value?

We just had central air installed and the contractor removed the radiators. However, the pipe and valves are left over sticking out of the floor upstairs. I tried using a plumber's wrench to at ...
3
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3answers
5k 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 ...
3
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2answers
3k views

How can I stop my boiler from making all this noise?

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, ...
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1answer
2k views

Is this radiator too small?

We have steam heat in our 1930s-era home and one of the bedrooms is much colder than the other two. Here is a picture of the radiator in the cold room: The room is 12'x12'x8'. This radiator is 8"...
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2answers
3k 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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3answers
2k views

Can I build storage in front of heaters?

We're in an NYC pre-war apartment building. Under every window, there's a built in radiator: Each has a knob that supposedly shuts the radiator off but it doesn't always work. Meaning you can ...
4
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3answers
7k views

Do home radiators waste water?

I received my second quarterly water bill and cannot believe it says I'm using 49,000 gallons of water each quarter. That's over 500 gals per day! So I started thinking about average water usage per ...
3
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3answers
17k views

Can I use a spray sealant to seal a leak in my radiator?

one of my steam radiators has a leak on the bottom, away from the valve (has been checked, my husband has changed out the valve). can I use a spray sealant to seal this leak? (like FlexSeal)
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1answer
3k views

How can I repair a radiator bleed valve that fell out?

I over-tightened the bleed valve on the radiator and it fell out! It seems to look like a screw but I can't seem to get it re-attached, luckily it's locked so not leaking. I can't see well enough to ...
2
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2answers
254 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 ...
3
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3answers
19k views

Why does my radiator leak if it's not fully opened or closed?

I have a hot water (or steam?) radiator that leaks water unless it's completely open or closed. The side has a valve that can be turned to open or shut the connecting pipe. The other side has a steam ...
4
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11answers
132k views

Why is my hot water baseboard heater not heating?

I have classic cast iron radiators in my house and then one "modern" one pictured below. It was installed in the 80s from what I know. It doesn't seem to produce much heat at all. It is properly ...
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2answers
3k 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 ...
2
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3answers
23k views

How do I unstick a radiator valve?

Having moved house, we find one particular radiator doesn't heat up, despite the pipes that lead to it getting hot. One of the valves must be stuck, and I've worked out which one by feeling the pipes ...
8
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2answers
13k views

Why does a single radiator need regular bleeding?

Almost all of the radiators (forced water) in my house heat up fine. However, a single radiator needs regular bleeding (~1/day) in order to heat. Note, this radiator is not at the highest point in the ...
5
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1answer
7k views

How can I get my third floor radiators working?

I have two radiators upstairs. One is slightly warm, and the other is not warm at all, leaving the room very cold. When I tried to bleed the radiators in the house, all of them released water and ...
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2answers
15k views

How can I stop the boiler from heating the radiators when only hot water is wanted?

I have Baxi Boiler (model unknown at this precise moment in time) which British Gas have fixed up to a seperate control panel (see image - not our actual panel, image from Google!). The problem is ...
2
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1answer
220 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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3answers
3k views

What type of paint and how many coats should be used to paint a radiator?

We've moved into a new house with a fairly incompatible sense of interior design. To illustrate one room in particular, the walls are orange, the floor to ceiling shelves are orange, the fireplace ...
6
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2answers
2k views

Are radiator reflectors as effective as claimed?

I recently completed a survey to determine the energy efficiency of my home. The results weren't great but got me thinking about the quick and affordable things I could do to improve things and ...
2
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1answer
1k 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 ...
2
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1answer
2k views

Does adding metal plate/foil behind radiators increases their heat distribution?

There is this theory that if you put a metallic foil behind radiators, will make them distribute heat better in the house rather than heating the wall next to them. Is this true, are there any ...
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1answer
2k views

Seebeck generator to run a fan on a radiator

I asked in this question if there was a heat powered fan for residential steam rads, to increase air flow over them since natural flow is pretty weak. Alas, looks like some wood stoves can use such a ...
2
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2answers
13k views

need feedback on radiator heating systems and carbon monoxide

I live in an old apartment with radiators for heat, The gas boiler is down two levels in the basement. oddly enough there are no cold air returns...is this correct? Our carbon monoxide alarm ...
4
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1answer
9k views

How to design a radiator cover for good heat distribution?

I want to replace some battered, ugly radiator covers in my 1910 home. I have read that to function effectively, a radiator cover needs openings at the front top and bottom, so that natural ...
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1answer
1k views

How to balance thermostat settings between zones to maximize efficiency?

I recently purchased a house so this is my first winter in it. The house was built in 1939 so most of the house is on a single heating zone using hot water radiated heat. The radiators are cast iron ...
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2answers
5k views

Why are my radiators not heating up?

The boiler is on; the pipe near the boiler is hot, but the pipes furthest away are cold. What does that mean, and how can I fix it?
4
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1answer
6k views

Why would only half a radiator heat up?

I'm having some trouble with a radiator. It doesn't bleed well, often not letting either air or water come out of the valve. And sometimes, only half of the radiator will be hot (well, warm). I was ...
4
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13answers
26k views

Are there fans for radiators to improve performance?

I lived all my life with forced air heating and cooling, but my house now has steam radiators. They perform ok, I suppose, but I know from trying that just letting the convection cause the airflow ...
4
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1answer
4k 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 ...
9
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1answer
53k views

Why is my radiator hissing?

I've never had a radiator before, all central air for me, but I'm living in an apartment that has them now. All of the radiators in my apartment have been hissing, and pouring out steam from the "...
4
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1answer
601 views

Understanding my radiator

I'm in my first apartment and it's a bit colder than I'd like it. Can I tweak the settings on my radiator so that it's warmer? I'm motivated to learn more about my radiator and it's hard to find ...
4
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1answer
14k 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 ...
2
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4answers
517 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 ...