Need help sizing a circulation /hydronic pump. Please help!?

Have 75,000 btu boiler, cast iron, with 1″ supply and return. Using with a 79 gallon indirect, hot water heater /storage tank. Co. says flow rate for coil is 5gpm . They do not list pressure loss at coil. I am using 1″ heat pex for [...]

Can a pipe burst from hydronic air lock?

I have baseboard water radiators and cast iron radiators. Can the water pipe in the baseboard radiator burst if it has hydronic air lock? New circulator was put in two weeks ago and then this happened.

The expansion tank and T&P relief valves should stop that from happening. Have [...]

Endometriosis Part 124 – Endometriosis and Iron
As we mentioned in previous articles, endometriosis growing somewhere else other than the endometrium also reacts to hormonal signals of the monthly menstrual cycle by building up tissue, breaking it, and eliminating it through the menstrual period. As we know, nutritional supplements play a very important role in some [...]

Wiring a Natural Gas Hot water Boiler?

I Have replaced the dual control on boiler & I misplaced the wiring diagram for it (made a diagram when I removed it 3 months ago) The Dual Control has Two Dials on it with 2 terminal screws under each Dial, One dial is Limit & Other is Circulator [...]