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[newbie to boiler]

Hi we purchased a Used 2 year old heatmaster mf5000 in great condition ....Things we are going to do ...
First we are going to use 1 inch pex
 Roughly 70 feet underground maybe 2 feet grade up hill from stove to basement wall and 8 feet straight up and in to floor joist
 then 25 feet to hot water heater to a 30 plate water to water heat exchange with 1 inch fittings
 then 15 to 20 feet to heat exchange 16x 18 3 1/2 thick one inch fittings so roughly 240 feet loop
 My question is I need a pump that runs constant or not
 Would a Taco 011 f4 be what we are looking for ?

[RSI]

A Taco 0011 should work fine. Just make sure there is no place for air to get trapped in the pipe before the pump. Those pumps don't like even a little air getting in them.

[Scott7m]

Feel free to call me and I'd be glad to help make sure you get that heatmaster set up so you'll get many years of service out of it, I sell a lot of them and can teach you a few tricks