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Re: Hydronic Rating Handbook?

Did you dig around in the library on this site (i think it is called something else now), there are a few compilation books and may manufacturers' books in there. Click on the "website" link at the top and dig around.

mattmia2

Re: Hydronic Rating Handbook?

I don't know if it's exactly what you are looking for, but I use my "Burnham Hydronics Heating Helper" book almost every day.

Karl Reynolds

Re: Hydronic Rating Handbook?

Look in the System Help tab at this site. Plenty of radiator and heat emitter output tables.

IBR was another rating group from years gone by.

hot_rod

Re: Mystery domestic water line

centenial basement 1928.pdf

centenial basement 1928 (2).pdf

Grallert

Re: Thermal Mass: 3 Kinds?

Any other subtypes of Thermal Mass?

Have found references to three locations for Thermal Mass: 1) in the Thermal Shell, 2) interior to the shell, and 3) part of the heat emitters (e.g. RFH).

References suggest properties differ with location:

1) mass in the shell may actually lower heat loss through mass-enhanced R-value in certain climates;

2) mass in the interior may dampen and delay temperature changes; and

3) mass in the heat emitters may cause lag in responding to temperature changes, resulting in over or under-heating.

Thermal Mass and R-value: Making Sense of a Confusing Issue
Is there any other type of Thermal Mass with significance for hydronic heating or with other significant properties? References?

Thanks,

gf

Boilerpro_5

Re: Thermal Mass: 3 Kinds?

Any other subtypes of Thermal Mass?

Have found references to three locations for Thermal Mass:

1) in the Thermal Shell,

2) interior to the shell, and

3) part of the heat emitters (e.g. RFH).

References suggest that properties differ with location:

1) mass in the shell may lower heat loss by increasing mass-enhanced R-value;

2) mass in the interior may dampen and delay temperature changes; and

3) mass in the heat emitters may cause lag in responding to temperature changes, resulting in over or under-heating.

Thermal Mass and R-value: Making Sense of a Confusing Issue

Anyone know of any other type of Thermal Mass with significance for hydronic heating or any other significant properties? References?

Thanks,

gf

Boilerpro_5

Re: Thermal Mass: 3 Kinds?

Any other subtypes of Thermal Mass?

Have found references to three kinds of Termal Mass, each with different properties depending on location:

1) in the Thermal Shell,

2) interior to the shell, and

3) part of the heat emitters (e.g. RFH).

References suggest that

1) mass in the shell may lower heat loss by increasing mass-enhanced R-value;

2) mass in the interior may dampen and delay temperature changes; and

3) mass in the heat emitters may cause lag in responding to temperature changes, resulting in over or under-heating.

Thermal Mass and R-value: Making Sense of a Confusing Issue

Anyone know of any other type of Thermal Mass with significance for hydronic heating? References?

Thanks,

gf

Boilerpro_5

Re: Thermal Mass: 3 Kinds?

Any other subtypes of Thermal Mass?

Have found references to three kinds of Termal Mass, each with different properties depending on location: 1) in the Thermal Shell, 2) interior to the shell, and 3) part of the heat emitters (e.g. RFH).

References suggest that 1) mass in the shell may lower heat loss by increasing mass-enhanced R-value; 2) mass in the interior may dampen and delay temperature changes; and 3) mass in the heat emitters may cause lag in responding to temperature changes, resulting in over or under-heating.

Anyone know of any other significant type of or location for Thermal Mass? References?

Thermal Mass and R-value: Making Sense of a Confusing Issue

Thanks,

gf

Boilerpro_5

Frost free sillcock rated for continuous use

Another day, another thing I learn. About to pull the trigger on a 12" Woodford frost-free (based on reccos on this forum) I see in the specifications list: "Not rated for continuous use."

After a brief internet rabbit hole I understand that this has to do with the anti-siphon system: these are not rated for continuous pressure.

Any suggestions for a good quality sillcock rated for continuous use?

(As you may have guessed I'm adding a timer based irrigation system for our plants and so will keep the bib/sillcock always on in the summer.)

In_New_England

Re: Radiators getting hot when heating circuit off

I think we need a complete diagram of the way that is all plumbed…

In the meantime, if there are no valves I suspect you are seeing gravity flow in the radiators. How to fix the problem, though… depends on how things are actually hooked together.

Jamie Hall