CB
Built Like A Tank With Laser Precision
Page
19
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IV. Other Hook Ups - Heating Domestic Water, Pools and Spa’s
A. Layout of Water Lines for Sidearm
The hot line from boiler goes into the top of sidearm. This creates twice the domestic water flow
through the sidearm as opposed to coming in at the bottom. Hookups to the domestic side must be
connected to drain and pressure relief ports. Make sure to keep drain & pressure relief in service &
purge all air from piping and sidearm.
Use a mixing valve to control water temperature.
B. Warm Weather Operation and Hot Water Bypass
Operation in warmer weather will result in larger amounts of creosote and will be tricky as too many coals
will cause the water jacket to boil if not enough heat is being used. To compensate, load less wood and/or
purchase a chimney damper to reduce draft through the chimney. (Call Nature’s Comfort for where to find)
Adequate water circulation is critical for preventing water from boiling (see page 11). Make sure all gaskets
and air intakes are properly sealed to prevent any extra air from feeding a fire. See the maintenance
section for how to adjust the main door seal.
For heating of domestic hot water without heating your home, install a 3-valve bypass system shown
below. This permits you to use your boiler during the spring, summer and fall seasons to heat your hot
water when you may not need or want to heat your house. The bypass permits the water to run from your
boiler to the hot water heater and bypass the heat exchanger in the furnace plenum. Use of union fittings
between the isolation valves and heat exchanger for easy removal is recommended as the plenum heat
exchanger must be drained or removed so the water doesn’t freeze when running air conditioning.
