Re: Hot water Radiator Risers
Posted by Tony Conner on December 28, 2001 at 15:55:23:
In response to Re: Hot water Radiator Risers
You'll have to do (or have done) a room by room heat loss for your house. Once that's done, you can size the boiler, and the radiator for each room can be selected. When that's done, you can size the piping and pump(s).

If you're also using the boiler for domestic hot water, that needs to be figured in as well. With newer structures, the capacity for heating domestic hot water will usually exceed what is required for heating the house. Many people arrange the piping and controls to have the domestic hot water as a priority. There's quite a flywheel effect in hot water heating, and you can typically have all of the boiler output directed to domestic hot water for 15 or 20 minutes at a time without anyone noticing.

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