Boiler cycling on and off with a low-flow shower head
Just wondering if anyone has come across this before. I have a Baxi Luna 310 fi modulating boiler for both in-floor heating & domestic hot water (35,000-105,000 Btu). With a low-flow shower head (approx. 6 litres / minute), the shower water goes from hot to cold constantly. I noticed the boiler cycles on and off the same way. The boiler requires a minimum flow rate of 11 litres / minute to prevent it from cycling on and off.
I know I could install a wasteful minimum 11 litres / minute shower head or maybe a small buffering tank 5 or 10 gallons ? so the water would maintain a constant temperature. Here in Ontario the building code requires hot water storage tanks to maintain 140 degrees F to prevent Legionnaires disease.
Any advice would be appreciated!
Posted Mon, 09/16/2013 - 17:35
Edited Tue, 09/17/2013 - 05:20
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