Questions tagged [radiator]

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2answers
147 views

Are black marks on the wall over a radiator cause for concern?

I'm looking to purchase a home that has a hot water system. This home shows black marks above the radiators on the painted walls. What does this mean and should I be concerned? The previous owner ...
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2answers
41 views

Radiators no longer heating up after cold weather

I have a Worcestor Danesmoor boiler that lives in a stone outhouse and heats the water and radiators in my house. The heating is set to come on at certain times of day, but during some recent cold ...
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0answers
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convector hot water radiator in far bedroom doesnt work on second floor

far bedroom radiator isnt warm while other rooms convector radiator works fine. cant find any valves in basement or near radiator. any assistance would be greatly appreciated.all pipes leading and ...
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1answer
40 views

Why does my radiator only come on when other radiators are on too?

We've just fitted smart TRVs and since doing so we've noticed that the radiator in our bedroom is usually cold, even though according to our settings it should be heating up. It does heat up a little ...
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1answer
55 views

Why is my steam radiator rattling like this, and what can I do about it?

I have one-pipe steam radiators in a home built in 1905 (condoized in 1998). Only one of the radiators, the largest, makes this awful rattling sound when the system heats up: https://youtu.be/...
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1answer
146 views

Glow Worm Flexicom HX boiler F11, F22, F25 Error codes

This is less of a question, but more of a list of things we tried to stop the frequent F11, F22 and F25 error codes appearing on our Glow Worm Flexicom HX boiler which would stop it from functioning. ...
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0answers
30 views

How to remove a Honeywell Braukmann 104v radiator actuator

I have a radiator with a Honeywell 104V radiator actuator that I'd like to replace, I think it's P/N T104V1422. I can't seem to figure out how the thing is connected to remove it. The rest of the ...
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0answers
43 views

How can I use home automation with hot water heating radiators?

My apartment (in a condo building) is currently using stationary PTACs (using electricity and hot water), which I'm planning to replace with a split-level A/C system (for cooling) and hot water ...
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2answers
53 views

Can you change a TRV by isolating the radiator at both ends?

I've been changing the thermostatic radiator valves on my radiators. My understanding (obviously wrong) is that if the TRV is turned off and the lock shield is off, that at that stage no water is ...
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1answer
282 views

Duct tape and painter's tape to cover baseboard heater

I am having an issue of beetles and centipedes entering my apartment from under my baseboard (length of room) radiator via cracks in the foundation. Landlord is not able to send anyone out for a few ...
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2answers
228 views

Dart in the radiator… How do I fix it without replacing the radiator?

So I was playing darts with my friend, and below the dartboard is a radiator. Anyway long story short the dart went into the radiator and now water is spraying everywhere out of it. I managed to ...
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2answers
42 views

Replace radiator mains and reduce electrical consumption

I have recently converted from oil to gas in my 2500 sqft 1930s era Home. We have a hot water radiator system. We left the original radiator main pipes and risers. They are large pipes 3” mains. and ...
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0answers
59 views

How do I move a radiator about 15 centimetres?

I can remount the brackets no problem, but may have to extend the pipes on both sides. How do I do it, and how hard is it?
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1answer
285 views

How do I turn off this two-pipe steam radiator?

We live in an NYC apartment with steam heat. The noise of this radiator is driving us crazy because it's in the bedroom. We want to turn it off. The solution seems to be to shut the intake, the same ...
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1answer
68 views

cannot get last radiator on the line to heat up

All radiators but one are toasty. The cold one is up on the second floor, and is the last one on the line, farthest from the boiler. It has been bled of air. It shoots out a thin stream of (cold) ...
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1answer
77 views

What kind of radiator is this and can it take TRV

I live in a brownstone built in 1900 converted to separate apartments in early 1970’s (I think). We have a single pipe steam heat system and recently replaced the boiler. My unit is one that’s ...
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1answer
44 views

When the radiator is leaking and it's throwing out water

Could the vapor that comes out of the radiator be harmful to a person. The room got full of yellow brown spot all over the walls.
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1answer
29 views

Bedroom Radiator not operating properly

We have two nest thermostats installed over a month ago and i am not sure the issue was after or before the installation of nest thermostat. We have two zones of heating installed in our house.One is ...
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3answers
61 views

How should I remove corrosion like this from radiator connections

In the process of replacing a radiator and there is a fair amount of corrosion around the connections. I plan on scrubbing as much off as I can with sandpaper or steel wool, but is there a ...
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5answers
63 views

Do I need to reuse these radiator connectors, or should I get new ones?

I have finally got around to removing an old damaged Stelrad radiator - I have an identical one waiting to go on the wall but despite using a fair amount of force, the connectors don't appear to want ...
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0answers
122 views

bleeding radiator without access to the bleeder valve

I've got a cast iron radiator where the end with the bleeder valve is shoved up against a wall. Is there any other way to bleed a radiator? Supply and return pipes are at top and bottom of the ...
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3answers
1k views

Bleeding a Cast Iron Radiator with No Bleeder Valve

I am having an issue with a single cast iron radiator where it is not heating up at all. All other radiators are working fine in the apartment. A lot of people suggest bleeding the radiator, however, ...
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1answer
327 views

Water radiator system has single loop instead of flow & return pipes — does this make sense?

I have a hot water heating system connected to several radiators throughout the house. While all diagrams I have seen of radiator plumbing have a separate flow and return pipe, this one has a single ...
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2answers
58 views

Convert section of radiator pipes from rigid pipes to flexible pipes

I am looking to purchase a treadmill to use in my basement hut the location I want to use it has radiator pipes in the way. I am wondering if it would be possible to replace the pictures section of ...
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1answer
145 views

Bleed radiator in to jug, frothy bubbles on the surface of the water

I bleed 1/2 litre from radiator into a jug, frothy bubbles on the surface of the water, does that indicate air bubbles trapped in the water or is that normal ? Also the water is clear but slight ...
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1answer
159 views

How do I force pump to force supply to radiators at top of house,

If I want to force pump to direct all its attention to radiator in loft to see if I can get them hot. Will simply turning down the thermostatic valves for all the other radiators have that affect or ...
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1answer
268 views

Would pipe from radiator to bottom of hot water tank be supply or return?

I have one radiator that does not work at all (although it has worked in the past). Unlike all the other radiators that come directly of the main supply and return pipe from the boiler I can see that ...
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2answers
404 views

How does water travel through a modern column radiator

I.e is there a single route going up and down each column, or does it travel along the top/bottom left to right. My radiator has twenty set of three columns, would be good to see the inside of such a ...
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1answer
32 views

In open-vented central heating system why does height of cistern matter when water gets pumped anyway

I'm struggling to understand the interplay between the pump that pumps water and how the location of the feed expansion tank affects whether radiators work. In my system most of the radiators work ...
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1answer
57 views

Is it safe to put a radiator pipe through a load-bearing brick wall?

I am getting a new radiator installed to replace an old ones. The pipes came from room next door and existing pipes were unsightly, partly because they came through bottom of joist/floor/bottom of ...
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0answers
31 views

Is it usual/desirable for main supply pipe to be larger than radiator pipes

I have been looking at the layout of my central heating. Because my house is old it has solid ground floor and solid internal walls. Boiler is on ground floor but supply and return pipes go into ...
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1answer
40 views

How do household radiator thermostatic valves work

I'm unclear how thermostatic valves work. If set to 5 does that mean it continues letting in hot water into the 1. radiator regardless, or does it stop when it detects the 2. radiator is a certain ...
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1answer
302 views

What is the principle behind lockshield valves?

I've read that radiator lockshield valves are used to "balance" radiators so that they warm up at the same speed, but I don't quite understand the principle of how this works. If the main ...
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1answer
46 views

Radiator turning off too soon

We have recently had new radiators fitted, but one of them appears to be turning off too soon on the TRV. Its a Myson TRV with numbers 1 - 4, as well as white and blue dots. We have the TRV set to ...
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1answer
662 views

Hot water radiator valve leaks

The attached picture shows the valve on a hot water radiator that leaks and the arrow points to where it leaks. It drips about one drop a minute. It feels like a quarter turn on that nut might fix ...
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1answer
61 views

Installing UK/EU electric radiator in USA… 50/60Hz significant?

I've currently got several Cadet RM162 Registers (in-wall heaters) in my home. They're powered with 220VAC power. I'm curious about the challenges of converting some to the sort of electric radiator ...
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1answer
677 views

How do I permanently remove a steam radiator?

I have a steam radiator in my apartment that I would like to completely remove, because: I want to use the space for something else my apartment is too warm it makes a loud hissing noise when it's on ...
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3answers
190 views

what kind of radiator is this? Can I build a wood cover for it?

There is a thin pipe coming from wall on the left that attaches to this metal filterlike coil thing. This coil thing is this very dirty, is it a filter? The dirty filter thing measures 1.5" thick, 8....
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1answer
165 views

Missing control knob for bathroom radiator

I recently moved to a new house that has a bathroom radiator, but the temperature control knob is missing. The problem is that I don't know the type, brand, and model of it to search for a replacement ...
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1answer
252 views

Do radiator covers harm heating efficiency?

I am considering radiator covers, maybe wood slats with a foil back that will prevent towards-wall radiation. How much will this harm the heating efficiency of the radiators?
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1answer
52 views

What is the recommended power and connection height for a “design” radiator in a bathroom?

I need to provide the builder of my new house the height from floor of the water connections for the radiator of my bathroom. Right now I have a 1800 x 3100 mm bathroom with a "design radiator" (the ...
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1answer
236 views

I lowered the pressure on my boiler and it flooded

We have single-pipe steam in our four unit building. We installed Danfoss RA 2000 valves in 3 of the 4 apartments but they seemed not to work too well and also tended to spit water from the air valves....
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2answers
164 views

Is 68F too low for hot water heating thermostat? Final radiators not getting heat

I have a hot water heating system. It's a single loop in a ranch home. The ground floor is about 1500 square feet. When the oil furnace turns on, the first few radiators in the loop get warm, but the ...
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3answers
1k views

Is there a tool that can clean the fins of a base board heater?

I have baseboard radiators in a new home (built in the 50s) and the fins are filled with lint. Vacuuming isn't pulling the stuff out. Is there a tool that can help with this? Thanks
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2answers
1k views

What options exist for replacing or upgrading heater radiators?

I've got a hot water heating system in my home. Some rooms have baseboard radiators (recent ones), then other rooms have old radiator faces like this: The heat isn't coming up so well in some of ...
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0answers
406 views

How do I open this radiator TRV valve?

The radiator is cold at the bottom and I suspect that the pin is stuck. I bled the radiator and there was no sludge.
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1answer
106 views

How can I have the water running to increase pressure on my boiler?

I have just perform a radiator bleeding following youtube video but the pressure dropped to zero in my boiling system vaillant ecotec pro, have a permanent red light in addition to the normal green, ...
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3answers
3k views

Where to place a radiator under a window seat?

I have a bay window in which I want to build a window seat like this: However, a radiator is currently attached to the wall underneath the windows, with a radiator cover (the typical board with ...
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1answer
2k views

Rapid loud tapping in wall adjacent to radiator- when tenant above adjusts

Hello and thank you for your reply. I have a very loud and at times rapid tapping noise in the wall. The apt building is 2 stories high, I am located on the bottom floor (end of the plumbing line). ...
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2answers
173 views

Why can't my radiator heat up my bedroom?

My living room, 3.3m x 4.4m, is easily heated up by a double panel, double fin radiator. My bedroom on the otherhand (2.7m x 3.9m) struggles to be heated by double panel, single fin radiator. It ...