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3
votes
1answer
119 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 ...
1
vote
1answer
1k 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 ...
2
votes
0answers
61 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....
1
vote
0answers
67 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). ...
1
vote
0answers
725 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
71 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 ...
1
vote
0answers
1k 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 ...
1
vote
0answers
82 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 ...
1
vote
0answers
76 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
71 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 ...
0
votes
0answers
27 views

How to close pipes of shared central heating radiator

I want to permanently remove a radiator in my apartment that is connected to a central heating system shared by other apartments. It gets in the way of a kitchen we are installing. The pipes must be ...
0
votes
0answers
202 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 ...
0
votes
0answers
29 views

How to add a new radiator/plinth heater into heating circuit? Series or Parallel?

I've just bought an hydronic [sic] plinth heater to go in my kitchen and I'm not sure how to plumb it in. I currently have a combi-boiler central heating circuit with all HEP (plastic) pipe and ...
0
votes
0answers
22 views

Radiator malfunction

I have a 3 story, 100 year old house with original hot water radiators and modern furnace. I have never done any preventative maintenance such as yearly bleeding of the radiators, etc., and everything ...
0
votes
0answers
34 views

How can I bleed my valves if they are turned towards the wall?

The radiator valve spout is turned away from me. What can I do to bleed these radiators?
0
votes
0answers
38 views

How do I go about finding the correct size hydronic baseboard radiator covers?

I replaced some drywall behind a hydronic baseboard radiator. The original covers were thrown out. The element size is 2.75x2.75. This is bigger than the covers sold at big box stores. I called a ...
0
votes
0answers
37 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 ...
0
votes
0answers
74 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 ...
0
votes
0answers
275 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 ...