A central heating system that transfers heat from a boiler to each room through a fluid filled plumbing system.

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2answers
40 views

Why are some rooms warmer than others with radiant baseboard heat?

We have hot water baseboard radiation heat. How is it possible that the first room the hot water is supposed to heat is cold and the second and fourth room are to hot and the third and fifth rooms are ...
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2answers
146 views

Connecting PEX and my existing Boiler Heating System

I was thinking of running oxygen barrier PEX under the floor between the joists in a cold room with a crawl space below and then putting rigid foam insulation below to keep the heat in. I have an ...
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1answer
39 views

heating zone stays hot even when the thermostat isn't calling

we're trying to solve a very strange hot water heating problem (drawing below). We just separated the the 2nd and 3rd floors in my house into two separate heating zones, and the 3rd floor is now ...
3
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1answer
76 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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0answers
27 views

Expansion tank is cold

My old-style expansion tank is cold from top to bottom, but I hear boiling water in the pipes right above the gas furnace. Is that normal?
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0answers
15 views

FHW oil basedboard radiators are hot even when t-stats turned off. Sediment in pipes?

I moved into a condo a few months ago. It has a forced hot water oil heating system. First floor is one heating zone; second floor is another; boiler is in basement. T-stats are manual/mercury ...
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0answers
10 views

Should I replumb my heating system when converting from steam to hydronic heat and back?

I live in an old 2-story house that originally was piped for steam heat. Some time ago (1950's) a previous owner took out the radiators, put in fin and tube baseboard radiators, and installed a hot ...
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0answers
34 views

No heat going to zone (baseboard)

We have a three-zone baseboard heating system. One day it became extremely hot in one of the zones on the 1st floor; it seemed as though the system was pumping hot water no matter what the thermostat ...
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0answers
190 views

How to stop central heating system from leaking

Our central heating system is leaking a bit of water. The system is a Ferolli Megadens 5, it heats water for both the central heating system and the shower/tap. There are several pipes below the ...
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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 ...