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Guys , just curious, how do you work out your rad sizes when using WC , rather than a set DT of say 50
Discuss Rad delta T with wc. in the Plumbing Jobs | The Job-board area at PlumbersForums.net
WC?
I work out the heat losses from room then look at Stelrad Charts to choose the rad. They do charts for 30T, 40T, 50T etc.
Does that help?
You just size as normal, the idea being that as the external temp rises from the designed low point, the required output from the heat emitter will be less to maintain the room temp. This is still met by progressively reducing the boiler flow temperature.
DHDG?
Sorry, Domestic Heating Design Guide.
I thought every one had a copy
Christmas presents ?
Christmas presents ?
Not at £28 a copy, just to satisfy my curiosity.Sorry, Domestic Heating Design Guide.
I thought every one had a copy
Does nobody use a mears’ calculcator anymore? Or are they classed as too outdated?
Worked for years though.I have one , very very basic , I have never trusted it
Is there a superb app out therefor heat loss, free or fee .. I don’t mind
I like a man who does it long handIf you want a cheap quick one , Mr combis are ok .
However I have just worked our new bedroom heat loss / rad size etc etc , I did mine long hand and know it was right ( F1 F2 etc )and then compared it to the Mr Combi , quite a bit of difference.
How about Satisfying a thirst for knowledge, doing things right, staying up to date.Not at £28 a copy, just to satisfy my curiosity.
Mines all short handI like a man who does it long hand
If you want a cheap quick one , Mr combis are ok .
However I have just worked our new bedroom heat loss / rad size etc etc , I did mine long hand and know it was right ( F1 F2 etc )and then compared it to the Mr Combi , quite a bit of difference.
whose was higher ?
Reply to Rad delta T with wc. in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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