Questions tagged [radiator]

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Corrosion on pipe?

This section of pipe has looked the same for a few years (perhaps the whole time I’ve lived here)Never seen visible leak or dampness. So am not sure if this is a leak or impending leak……does this ...
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3 votes
2 answers
47 views

Capping radiator pipes away from trunkline because of asbestos

I'm permanently removing two radiators as part of a reno project (bathroom replacing with radiant floor heat). I know that the ideal situation is to remove and cap the pipes as close to the trunkline ...
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0 votes
1 answer
44 views

Can I replace one hot water radiator with electric underfloor heat?

My home in NJ, USA uses has gas-fired hot water radiators for heat. I am renovating the bathroom and will be adding underfloor heat. The bathroom has a radiator that I'd like to eliminate. I don't ...
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30 votes
11 answers
7k views

Why are so many radiators installed beneath a window (at least in Germany)?

I live in Germany and I always wondered why the radiators in most apartments are installed right beneath a window. The pictures below show an example (this is an older building, but you see similar ...
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1 answer
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Are those pipes at risk of clogging or leaking?

Just moved to my newly renovated home. I found those pipes looks a bit weird. The first photo is the kitchen sink drain pipe, the p type pipe tiled a lot, will this causing any potential clog problem? ...
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0 answers
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Is it possible to repair damage to a radiators coating?

One of our brand new radiators got damaged while having some other work done. Is there anything that can be done to repair the patch where the coating has been taken off?
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0 answers
37 views

Radiators go cold when hot water running

I recently had a new Worcester-Bosch combi boiler installed together with new radiators and pipes for the entire property. The radiators heat up fine but the moment I open the hot water tap, the ...
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0 votes
1 answer
24 views

repair a leak for an electrical oil heating radiator

I have a radiator that has started leaking oil, by its bolt. I assume that cause can be that metal is a bit rusty around the bolt, as it is easy to remove the paint when scratching and a bit of rust ...
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0 votes
1 answer
83 views

Did Dishes with Radiator Water For a Year [closed]

The valves connected between my (serpentine) hot water tank and radiators is broken. Moreover the serpentine is broken and hence the hot water for showering and doing the dishes has been cross-...
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0 votes
1 answer
83 views

Can I put a radiator on the wall behind a toilet?

I'm thinking of layouts for a bathroom reno, and wall space is at a premium. There is an existing recessed hot water radiator along one wall and I'd like to place the toilet in front of it. Because ...
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0 votes
1 answer
71 views

Rust on Bathroom Radiator (Towel Rail)

I've a 36 Month old Bathroom Radiator (towel rail) that is connected to the central heating system and has started 'growing' rust (see pictures). Is there any method to remove the rust & stop this ...
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5 votes
0 answers
95 views

Question about bleeding baseboard heating

I have a house built in 1949 with baseboard heating (5 loops), and I don't seem to be able to find any bleeder valves at the baseboards themselves. One of the loops in particular is making an awful ...
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1 answer
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Saving energy with wall-mounted boiler and radiators

I have a wall-mounted gas boiler and four radiators around the house in different rooms and locations, and the thermostat is in the living room. I wonder should I close all radiators except the one in ...
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0 votes
1 answer
86 views

Correct wiring for second thermostat

In a previous question on here I was trying to figure out why my basement radiators weren't working. With everyone's help I was able to figure out that the zone valve on the pipe which came from the ...
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2 votes
1 answer
65 views

Single pipe steam radiator barely heats up - is there a way to flush/unclog it without taking it apart?

I am renting this apartment, so i rather keep the Work as less invasive as possible. I have several single pipe steam radiators (could as well be the cast iron type). One of the radiators heats up at ...
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6 votes
1 answer
831 views

Newly purchased home, basement radiators don't work

we purchased a home a few months ago and now that winter rolled around, just realized the radiators in the basement aren't working. And I apologize for the long post, tried to explain everything I've ...
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0 votes
0 answers
38 views

Filling large hole to screw/drill into again

I have a radiator which was not on properly. I tries tightening the screws but the original plaster just gave way. I filled it with 2 products (polycell and ronseal) which both claimed they could take ...
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0 votes
0 answers
26 views

Do steam heat systems need flushing?

Do steam heat systems ever need to be flushed? The last owners & I never did, about 25 years. One pipe steam heat system, 30g peerless oil boiler. Sight glass gets fairly brown within days of ...
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2 votes
5 answers
128 views

How to balance hot-water heating system when farthest radiator stays cold

Is there a counterpart to the advice given in this video except for late 1940s-era convector-style radiators which do not have a valve on their return and have only an air-bleed-valve? Basically a ...
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0 votes
0 answers
25 views

Preparing for steam boiler maintenance

I've just moved into a new house with radiator heat/steam boiler, and there seem to be a few issues (loud banging noises on startup, one radiator leaking). I have a maintenance person coming out next ...
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3 votes
2 answers
133 views

What is this kind of radiator bleed valve called?

I managed to shear off the middle bit of my radiator bleed valve yesterday, just by turning it with a key. The bleed valve went into a hex nut, which is ~11mm across. I don't absolutely have to ...
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0 votes
1 answer
50 views

Recommended pressure in hydronic radiator closed circuit

What is the recommended pressure in a hydronic radiator closed circuit? By "closed" I mean there is a valve to fill it and then it can be closed, after which the circuit is not connected to ...
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2 votes
2 answers
360 views

Filling in gaps around radiator pipes

So I've been sleuthing on here for a minute to find an answer to my special quirk here but couldn't find it so now I'm asking. So I have some annoying holes near my radiators but they connect downward ...
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0 votes
0 answers
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Home hot-water radiator, high-heat paint vs not, water-based primer for oil paint

Two-part question: I have a home radiator that I have cleaned up to repaint. I was unsure if I can use regular enamel paints or is High-Heat required? I have seen answers both ways on this. The ...
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  • 190
0 votes
0 answers
17 views

Column rad feet on non-column rad

One pic shows the experiments I'm doing with supporting a type 11 radiator (160cm wide, 50cm high, total weight around 35kg) using universal column radiator feet. The other pic shows the detail of the ...
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  • 243
0 votes
1 answer
172 views

How to disconnect water radiators with both pipes on the same side?

I have water radiators where the in/out pipes are connected on the same side, and I can't find a guide online to explain how to disconnect those (all videos I find have 1 pipe on each side) What I ...
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1 vote
1 answer
58 views

Vertical radiator on single stud?

I have an internal, decorated plasterboard wall (aka drywall outside UK) with poor studding: 120cm from its left end, there is a 22mm wide (i.e., as measured horizontally parallel to the wall) stud, ...
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  • 243
1 vote
2 answers
77 views

issue with closed loop hot water heating [closed]

So I have an 1880s Victorian in Boston that is proving to be quite the adventure. I'm new to this, so hopefully I am using the right words. I have a four zone hot water heating system with radiators ...
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-1 votes
1 answer
121 views

How can I increase boiler system pressure so bleeding 3rd floor radiators is easier?

It is very difficult to bleed air out of my 3rd floor radiators. I need at least 23 pounds according to the gage on the boiler, and ideally closer to 30 (but not too close!), to speed things up. The ...
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1 vote
1 answer
106 views

Baseboard radiator pipes running along edge of room

My house has baseboard radiators (water, not steam if it matters) and one room has the piping enter at the southwest corner, run all the way along the west wall, then feed the heaters on the north ...
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1 vote
0 answers
92 views

What is the effect on baseboard heating capacity of running the return pipe within the enclosure?

Baseboard radiators can be installed with the return pipe running within the baseboard enclosure itself. While this is a configuration explicitly supported by manufacturers I can't find any hard data ...
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1 vote
4 answers
518 views

Adjusting Steam Radiator

We recently moved in to a 1934 home with steam radiators. Our upstairs bedrooms are cold compared to the first floor. A room adjacent to our kitchen is generally warmer than the rest of the house. Can ...
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1 vote
2 answers
122 views

Why I am having eye irritation problem with oil radiator in my home (in India/Asia) when I never had such problem in Europe

I used to live in Europe, and I loved electronic oil radiators as well as central heating. This year, I decided to buy an electronic oil radiator for my home in Delhi, India. But whenever I use it, my ...
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1 vote
2 answers
116 views

Is there a reason I shouldn't use an oil radiator to heat a 1400 sq ft (130 sq m) space? (Why do commercial buildings use electric air heaters?)

I moved into a studio apartment in a commercial building turned residential. It has this kind of heater— —which I believe is an electric air heater. It's loud as hell. Everything I'm reading says oil-...
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1 vote
2 answers
259 views

How do I bleed a very old radiator and identify whether my system is steam or hot water?

All radiators are heating except one, so I'm trying to bleed it. There doesn't seem to be an obvious bleed valve (unless it's that nondescript, frozen, simple bolt on the top front corner of the left ...
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1 vote
1 answer
81 views

Extra powerful boiler short-cycling and overfilling

I have a gas powered steam radiator heating system with 8 radiators in the entire house. I replaced my old heating boiler with Crown Bsi138enpzzpsu 138K BTU which is way too powerful for my house. My ...
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1 vote
1 answer
86 views

Best way to temporarily relocate a radiator?

I need to move a radiator a few feet along a wall for about a year or two to avoid some furniture, and then move it back to its original location. I'd therefore like to avoid having to lift all the ...
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3 votes
2 answers
369 views

How to turn on a Honeywell gas heater

I am trying to understand how to turn the heater on in our unit. There is a thermostat on the living room wall that looks like this: And there is a trapdoor below the heater in the wall looking like ...
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0 votes
2 answers
359 views

Radiator behind sofa - Box Design

Unfortunately, the only place we can have a sofa is in front of the radiator and the radiator cannot be moved. I am thinking about building a box around the radiator to achieve the following: The ...
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2 votes
1 answer
4k views

Bleed radiators with no valve - is this valve near the boiler what I want?

I recently bought a house, and with the winter starting to set in (UK), have started putting the heating on in the mornings/ evenings. As many people are at the moment, I am currently working from ...
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0 votes
2 answers
144 views

Will this isolating valve allow me to change a radiator valve without draining down?

One of the valves on my radiator (circled in red) has seized and my attempts to open it have snapped off the flat part of the head, so it now needs replacing. My plan is to turn the isolating valve ...
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2 votes
2 answers
248 views

Element wattage for electric radiators

I'm looking for clarity about electric towel rails/radiators and wattages. Hope you can help. I want to connect a heated electric only towel rail into a circuit that has a smart home 'puck' switch ...
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0 votes
2 answers
46 views

Radiator leaking from valve-less end

The radiator in my living room is slowly leaking from one of its ends; curiously it's not the end connected to the inlet or outlet pipe, nor the one where the vent valve is, but the fourth one. ...
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0 votes
3 answers
85 views

Updating baseboard radiator

My house was built in the 50s and I believe the baseboard radiators are original. We just bought the house and I went to go clean them. I realized most of them are rusty and painted over making them ...
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0 votes
3 answers
306 views

Thermostat location in 3 story building

Where would you place the thermostat in a single zone, 3 story building. Tt's a multi-family residential, 3 units, one unit per floor. The boiler is a high-efficiency condensing boiler in the basement,...
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1 vote
1 answer
64 views

radiator starts banging seconds after turning on the valve

I even made a video - https://www.youtube.com/watch?v=xiCzXr59p6E Do you guys have any idea what could be the reason?
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1 vote
1 answer
903 views

Loud knocking noise in house with radiators and old plumbing

I'm staying in a three story home with radiators and old plumbing (probably copper). I'm a guest and it's a rental with a management company (they fix a few things here and there but not most things). ...
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0 votes
1 answer
36 views

Replacing cast iron hot water floor standing radiator with wall mounted type

How does one size the replacement radiator to approximate the old radiator output, or should I just do a heating btu calculation from the room dimensions?
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1 vote
1 answer
7k views

Baseboard water heat not heating one room; Rest of zone/house is good

I have a baseboard water heating system set up in three zones. One zone consists of two bedrooms and a bathroom at one end of my house. The thermostat for that zone is in the hallway connecting the ...
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  • 3,480
-1 votes
1 answer
74 views

upstairs radiator not working

upstairs radiator not working - all others are ok - valve on one end Therm controller on other - took a spanner to the valve and ensured open - still will not come on - what could the problem be?
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