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Maggiemom
Hot water radiators...
Maggiemom

I am looking for some help... In an episode of ask TOH I saw them installing small thermostats to individual hot water radiators. We own a home for elderly people, each of them like their rooms at different temperatures. Our heating system consists of hot water radiators. The overall temperature is set at 80 degrees, but we still have complaints that some rooms are cool, while others have there windows wide open. Was I imagining that individual thermostats exist for this type of problem. The company that maintains the system for us has no clue as to what I am refering to. Any help would be appreciated.:o

JacktheShack
Re: Hot water radiators...
JacktheShack

You no doubt saw the TOH crew installing what is known as Thermostatic Radiator Valves (TRV).

See the sites below for illustration.

These valves can be placed on each radiator, require no electricity, and, under certain conditions can control the temperature of the individual radiator.

If there are already on/off valves on the radiators, the TRV can probably be used.

However, if there are NO on/off valves currently on the radiators, you would have to verify that the radiators are individually piped properly (in parallel).

Some radiators are piped in series (see the heating help site below), and would not be amenable to these valves.

Notice on the HH site that under loop piping systems the radiators are connected in series and would not be able to use a TRV.

In the diagram under diverter-valve, or two-pipe systems, the TRV can be installed.

They cost $40-$50 each wholesale, and with the labor, may cost ~$100 per radiator to have installed.

This would require a certain amount of labor for each radiator, since the radiator lines have to be drained, the pipe cut open, and the TRV installed.

You would have to have the company that does the heating work for you give you a quote, or perhaps get quotes from other heating contractors to have some idea of the total cost.

It might be wise to start on only those residents who are complaining of heat problems.

http://www.mysoninc.com/Pages/Radiators/valve1.html
http://www.pexsupply.com/categories.asp?cid=789&brandid=
http://www.heatinghelp.com/heating_qa.cfm

bobbyP
Re: Hot water radiators...
bobbyP

You have to question the capabilities of your heating engineers if they have never heard of these valves. We even have them in England.

snorth
Re: Hot water radiators...
snorth

In the online video they show a TRV being installed on a STEAM radiator.

I cannot find this valve anywhere. Our local heating supply company and my online searches have been futile.

Any suggestions on where to look?

thanks -

goldhiller
Re: Hot water radiators...
goldhiller

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