minimum solar thermal collector slope

sunspot · 12-23-13, 10:44 AM

Apologies if the answer is prominently posted in bold somewhere but I've searched to no avail so have to ask. What is considered the minimum slope to avoid stagnation? Are there ways to overcome stagnation if the minimum slope can't be achieved? Perhaps a lower set point on the collector inlet temp signal in combination with a tempering valve to bypass the thermal storage tank until operating temps are reached – thinking out load a this point.

A recently started renovation gives me the opportunity to plumb for a future collector if it's feasible.

Thanks everyone.

12-23-13, 10:44 AM	#1
sunspot Apprentice EcoRenovator Join Date: Apr 2012 Location: Vancouver Island, BC Posts: 147 Thanks: 30 Thanked 35 Times in 29 Posts	minimum solar thermal collector slope Apologies if the answer is prominently posted in bold somewhere but I've searched to no avail so have to ask. What is considered the minimum slope to avoid stagnation? Are there ways to overcome stagnation if the minimum slope can't be achieved? Perhaps a lower set point on the collector inlet temp signal in combination with a tempering valve to bypass the thermal storage tank until operating temps are reached – thinking out load a this point. A recently started renovation gives me the opportunity to plumb for a future collector if it's feasible. Thanks everyone.