Questions tagged [radiator]

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1answer
44 views

I have a combi boiler and since yesterday the radiators are getting really hot even when thermostat is turned right down

Radiators getting hot even when thermostat is turned right down. Its a Worcester combined boiler
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3answers
3k views

My eq-3 Bluetooth Radiator Thermostat CC-RT-BLE is just showing “UPD”. How can I “unbrick” it?

The thermostat just shows "UPD" and there is no way to return to the operating mode. How can I complete the update when I didn't pair the device before or deleted the device from the app?
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1answer
101 views

What causes the noise coming from this radiator valve?

There's a hot water wall-hung radiator in my kitchen that produces a constant ticking noise when water is flowing. The noise is coming from the valve area, removing the thermostat does not influence ...
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1answer
491 views

What wire should be used for modern thermostat

I may (or may not) be pulling new wires to support current-generation thermostats.... Upgrading the thermostats themselves seems a good time to upgrade the wire too, though I think I could get by on ...
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0answers
93 views

Loud buzzing from hydronic gas boiler

I have a 105K BTU Raypak radiator boiler, similar to this one but a slightly older model (I guess mine is about 15 years old). The boiler heats and pumps hot water to 8 radiators throughout the house. ...
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2answers
691 views

What is the difference between EU and US radiators?

I have a single-zone hot water radiator system and I was looking to balance out differences in room temperatures without going so far as to install another zone at the boiler. While there are ...
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0answers
221 views

single radiator whistling and whirring on and off (hot water system)

As the question stated, I have a single radiator whistling and whirring on and off and I am trying to understand the cause, so I can stop it. It is a fairly high pitched whistle/whirr/squealing sound. ...
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1answer
54 views

Gas combi boiler raditator flushing to clear dirt

When I flushed my radiator, I have noticed that there is lots of sludge in the water. In order to remove the sludge from the heating system, I would like to Turn off the Worcester gas boiler Open ...
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1answer
209 views

Should an auxiliary circulation pump be installed on the supply or the return?

I'm adding a new 007 Circulator Pump for closed loop system. Problem is that one of the radiators on a third floor does not heat- tried purging air (it's a new added radiator). It gets hot when I ...
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1answer
63 views

Can I use my old radiator valves when replacing the radiator itself?

One of my Stelrad K1 radiators has died (corroded enough that there is a hole into it, and it's full of sludge and rust) so I'm going to replace it. It's a standard model, so should be a straight swap ...
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1answer
2k views

How to clean gray paint from copper pipe for push-in fitting?

I currently have old radiators and connected 1/2" copper pipes that were painted in grey color long time ago (assuming when heating was put in place). One pipe has developed a leak and need to replace ...
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2answers
795 views

Right way to disassemble radiator piping?

I have an old house with a radiator system, and am needing to take a radiator out. While some of the radiators in my house have nuts on both ends of the radiator, making it easy to remove, this one ...
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6answers
840 views

How should I attach a slab of soapstone to iron shelf brackets?

I have a 1'×3' slab of soapstone that I'm placing on top of my radiator, creating a shelf: The radiator bears most of the weight, but the stone isn't stable on top of the radiator (the individual ...
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1answer
843 views

Leaking Steam Radiator Pipe?

Just noticed a brown stain on my dinning room ceiling. It's almost directly above a cast iron radiator on the second floor. I know the water in the system gets iron deposits which must be why it's ...
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1answer
1k views

Banging pipes/radiator

I just moved into a new apartment and the steam heating is driving me insane. There are three kinds of noise: banging pipes when the heat comes on (seems to be coming from the floor/walls); hissing ...
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0answers
4k views

How do I remove this radiator cover?

I'm currently in the process of decorating and making my new home look nice and a big thing that is bothering me is the dust from inside the radiator vent, there is a lot! The radiator cover is ...
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1answer
51 views

Chromalux Electric Boiler Replacement for Radiator System

I have an old chromalux electric heater heating my radiant heaters. Would it be more cost effective to replace it with a gas fired boiler? - and would I have to replace the rads or just tie into them?
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2answers
2k views

What is the impact of a backwards connected hot water radiator?

When building a hot water heating system the plumber has connected one of the hot water radiators backwards, i.e., the loop comes in at the bottom of the radiator and leaves the radiator on the other ...
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1answer
159 views

Electric panel radiator won't turn on but it is warm where the gauge is

I have bought this house from 78 and it has nobö electric panel radiators 400V. I tried to turn them on for the first time but they won't turn on. The interesting thing is they are a bit warm where ...
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1answer
101 views

Need to purge air from every radiatior?

I have a gas fired hot water central heating system. Water is circulated by two zone pumps at the furnace. There is an automatic fill valve. I recently had work done on the heating system, and the ...
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1answer
67 views

Boiler Resevoir Slow Leak

I'm a new home owner. My house is heated with steam radiators attached to an oil fed boiler. The boiler is getting close to retirement. One concern I have is that I need to drain water from the ...
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2answers
2k views

What is the purpose of the valve between these two pipes?

I saw an interesting arrangement of pipes and valves in a house I visited. These are hot water pipes, the two vertical pipes connect to a radiator. What is the purpose of the valve between the two ...
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2answers
2k views

Refurbishing badly painted, rusty radiator

I'm trying to refurbish a radiator which is in pretty poor shape. The paint was all cracked and yellowing, and having sanded it, there's rust patches underneath. It's been painted badly in the past ...
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2answers
2k views

Is this Radiator handle/valve a replaceable part? Do I need to drain the system first?

Perhaps a stupid question... The ON / OFF valve on one of my 1900s radiators does not turn. Pictures below. The radiator is in a permanent "hot" state. Is the "valve" (handle and "small nut") ...
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0answers
96 views

Should I leave water in my galvanized radiator pipes when permanently removing boiler?

I have switched to using a ductless heat pump for heating and am planning on removing my gas boiler but leaving the hot water baseboard radiators and 65-year-old galvanized pipes (in the crawlspace). ...
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8answers
7k views

Prewarming for tankless waterheater

I have a tankless water heater that is just a little bit to small for our new house - the temperature rise isn't quite enough for the winter months. Our basement is big and relatively warm so I struck ...
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1answer
126 views

Second floor radiators only heat with all other radiators off

I have 2 rads on the second floor that will get hot water flow only when I stop all flow to the other rads on the system. Even then, the flow is very low. I have had this system for 10 years and ...
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3answers
3k views

Would upgrading hot water radiator heating result in much better efficiency?

My wife and I are thinking about buying a funky old house where we live, in southern Ontario, and trying to prioritize upgrades. There's a lot of knob and tube to replace -- top priority -- and some ...
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2answers
1k views

The hot water is working but the radiators will not heat up!

We have a Utica Boiler model number SFH4150WT and we are receiving hot water but the radiators do not heat up!!. We tried bleeding the radiators, they only heated up a little bit but after about 5 min ...
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0answers
104 views

Why are certain radiators hot during the night when the thermostat is very low?

We have a gas central heating system and we have set the thermostat to come on at different temperatures during the day. Generally between 7.00 and 22.00 it is set between 19 to 22 centigrade. From 22....
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1answer
2k views

Fitting a thermostatic valve onto a towel rail

I've got a towel rail in my bathroom that is heated from my combi boiler. I'd like to fit a TRV to the towel rail. Is there any reason why I shouldn't do that? Should I buy a specific type of TRV, or ...
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1answer
58 views

Are large radiators supposed to be colder?

I have a radiator in my room which is downstairs. It is a large radiators, almost 2 meters across. It is 10 degrees colder than the other radiators in the house (mine is 37 others are 47, tested with ...
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1answer
147 views

Changing radiators to radiant wall heating

In my bedroom/study I have only a radiator as heating. The problem is that the water flow is controlled by the thermostat in the living. This means that around wintertime my room has a big change in ...
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1answer
2k views

Is their a Radiator Safe expanding Foam?

So I live in an apartment building and I have a Bug problem, go figure. I have had my place sprayed repeatedly to try and get rid of them, but within a few weeks they're always back, worse than when ...
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1answer
3k views

What could be causing the humming sound in my hot water radiator?

The cold weather is here and yet again I have the same problem: humming radiators. I have done a lot of web searching and forum reading and not found any solution. The system is an oil burning ...
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0answers
107 views

Why is the gas water heater pressure valve leaking after installing recirculation pump & old radiator?

Kind of a complex situation. Using gas water heater as a boiler for an old cast iron radiator. In addition we added a recirculation pump. Everything was working fine but then we had leaking from water ...
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2answers
390 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 ...
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2answers
174 views

Insulated radiator foil

I'm concerned that the insulation/ cardboard foil that's behind my recessed radiator is asbestos. My house was built in 1960. Does anyone know if they made that stuff with asbestos? Before purchasing ...
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1answer
195 views

Old recessed radiators with reflector foil

I just bought a home built in 1960. It has old recessed radiators. I've noticed that behind the radiators is some sort of reflector foil which I'm guessing is backed with insulation. Should I replace ...
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2answers
84 views

Can I heat a radiator directly?

I understand the workings of steam and hot water radiators, however there has been a nagging question in my mind about why we first heat water (for steam or hot water) before we heat the radiator. Why ...
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3answers
84 views

Can forced central air be retrofitted with central humdifier?

Several homes I'm considering have central air conditioners, but radiators or baseboard heaters. Is it possible to use the A/C ductwork to provide humidity to the home? I assume most central ...
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0answers
3k views

Water not circulating in one radiator on a hot water boiler

My boiler has 4 zones. Zone 1 is the bottom floor. There are two radiators in zone 1. I am replacing one of them, an old baseboard radiator, with a cast iron with similar BTU. We hooked up the new ...
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0answers
118 views

Why are some radiators hot when the system is off?

Yesterday I drained my heating system so I could cut the pipes on one radiator to raise it. After refitting, I filled and bled all the radiators and they were all working. When I got up during the ...
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1answer
1k 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 ...
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1answer
49 views

Is there a problem in adjusting the radiator setting too often?

I just brought two small Ethernet-type cards, so I could start a project to control the single radiator in my student accommodation over the internet. (#EngineeringStudent) Now, the when I came back ...
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1answer
33k views

How do I bleed baseboard radiators without a bleeder valve?

I recently bought a newly remodeled 1950's era house about two months ago. It has a Weil Mclain fuel oil boiler that provides heat to four different zones (loops) in the house. Each zone has a couple ...
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1answer
2k views

Why does the pipe to my radiator get hot, but the radiator itself doesn't?

I have multiple radiators in my apartment, and all except one work. Unfortunately, it's the one in my bedroom! Brrr! The pipes to and from the radiator are hot to the touch, and I can hear water ...
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2answers
306 views

How do I plumb radiators in an off grid cottage?

I have a cottage that is off grid. I want to plumb radiators on it that wont use a pump, or minimise usage of a pump if at all possible. What is the best way to do this? Hot water tank is raised to ...
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2answers
967 views

Why are my water/radiator pipes whistling when I shut down the heating system?

With winter coming up, I started to heat the house and for the first time the radiator pipes are starting to whistle when I heat and then shut down the system. I have a big house and I need to shut ...
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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 ...