Questions tagged [radiator]

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42 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
107 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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0answers
113 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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2answers
52 views

issue with closed loop hot water heating

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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0answers
17 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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34 views

Not getting Water from Radiator

I moved into my home a few months ago and suspect it's been quite a while since anyone bled the radiators. I've been going around bleeding them for a few days and I'm still getting a lot of air out of ...
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0answers
56 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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0answers
261 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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99 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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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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122 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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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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1answer
37 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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2answers
100 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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29 views

How to identify Direct Return vs Reverse Return Pipe

Is there an easy way to tell if a hydronic heating system has direct return pipe or reverse return pipe?
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17 views

Closet installation of gas boiler

We have a gas-fired steam boiler (Williamson Thermoflo GSA-150) that heats our house. We're finishing the basement and would like to close off the boiler and water heater (also gas) in a small room. ...
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1answer
32 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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24 views

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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2answers
145 views

Can you change a PRV 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 PRV is turned off and the lock shield is off, that at that stage no water is ...
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61 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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59 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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700 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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0answers
381 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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0answers
6k 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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305 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 ...
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1answer
56 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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1answer
88 views

Trouble understanding my heating system

Hi, just moved to this new place and I'm struggling getting the right temperature for hot water and heater. Could anyone help me understand the direction and source of each pipe? I guessed some of ...
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2answers
6k 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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1answer
97 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
45 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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1answer
139 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
88 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
374 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
72 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 ...