The tag has no wiki summary.

learn more… | top users | synonyms

6
votes
5answers
724 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 ...
1
vote
1answer
48 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 ...
2
votes
2answers
137 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 ...
0
votes
1answer
85 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 ...
1
vote
0answers
30 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 ...
0
votes
0answers
23 views

Steam radiator not connected

I have two radiators on third floor that doesn't get hot. Gas boiler in basement. I suspect they are not connected. Can I find disconnect point without tearing into walls and creating more ...
1
vote
1answer
36 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 ...
1
vote
1answer
41 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 ...
0
votes
1answer
37 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 ...
0
votes
1answer
77 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 spray repeatedly to try and get rid of them, but with in a few weeks there always back, worst than when the ...
1
vote
0answers
325 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 ...
1
vote
0answers
43 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 ...
2
votes
1answer
73 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 ...
1
vote
2answers
86 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 ...
0
votes
1answer
84 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 ...
2
votes
2answers
47 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 ...
0
votes
3answers
51 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 ...
0
votes
0answers
745 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 ...
0
votes
0answers
66 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 ...
0
votes
0answers
62 views

Can I use my forced air furnace to heat water for radiant heat too?

I moved from Europe to USA 4 years ago and I was wondering if it's possible to combine forced air heating with the heating that uses radiators. My idea is to use the furnace for forced air to heat up ...
1
vote
1answer
500 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 ...
1
vote
1answer
36 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 ...
2
votes
1answer
9k 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 ...
0
votes
1answer
772 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 ...
1
vote
2answers
114 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 ...
1
vote
1answer
194 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 ...
1
vote
2answers
665 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 ...
1
vote
1answer
233 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?
0
votes
1answer
159 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 ...
0
votes
1answer
180 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, ...
1
vote
2answers
7k 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 ...
0
votes
3answers
5k 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 ...
1
vote
0answers
69 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. ...
1
vote
0answers
66 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
votes
1answer
252 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 ...
0
votes
0answers
72 views

Why is it taking so long for my house to heat up with no quality to the heat generated? [duplicate]

I'm in the UK. I have a small modern, well insulated and double glazed semi detached home which is heated with a traditional gas boiler feeding radiators and a hot water system. The heating had ...
3
votes
2answers
366 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 ...
1
vote
1answer
17k 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 ...
4
votes
1answer
970 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 ...
2
votes
2answers
2k 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. ...
2
votes
1answer
164 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 ...
0
votes
0answers
242 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
votes
3answers
4k 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
votes
1answer
324 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 ...
0
votes
0answers
674 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
votes
2answers
1k 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, ...
1
vote
1answer
1k 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 ...
1
vote
2answers
1k 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
vote
3answers
712 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 ...
3
votes
3answers
1k 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 ...