Is the outlay (approx £1k more to install the back boiler element, given that we will in any case fit the stove) worth the payback do you think? The boiler in question is a brand new one and 92% efficient so I am not sure whether this will be more efficient than the back boiler. Than ks.
Pressure safety valve theory and PSV valve mechanism
05/02/2015 · Boiler installation costs vary enormously, depending on how much work is required, the parts needed, their availability, where you live and who you employ for the job. A recent snapshot investigation, where our boilers expert arranged for 10 quotes to replace his own boiler, found that they can vary by as much as £3,200.
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The valve opens to release pressure when the level becomes too high, and closes again when the pressure has dropped to within a safe range. They can be used in all kinds of appliances and industries, including boilers and water heaters as well as clean water,
What does a pressure relief valve do? | Viessmann
23/08/2017 · Safety valves are designed to automatically pop open on pressure and stay open until there is a definite drop in pressure inside of the boiler. The pressure at which a PSV valve operates is known as blow down of safety valve & reseating pressure is called blow back, without chattering (opening and closing quickly). In most states, the only type of safety valve allowed on every steam boiler is the