How to avoid short cycling from a small radiant zone

If you are adding a small radiant zone to your home, it may cause the boiler to short-cycle. Here is a way to avoid buffer tank short cycling. Why not use your indirect water heater as a buffer tank? A high-mass, indirect water tank is best for this idea.
The use of a thermal mixing valve will allow you to reduce the temperature of the water to the radiant floor zone as needed. In-slab radiant heating with good insulation under the floor typically operates at temperatures below 110Â°F on the coldest days of the year.

Disclaimer: The information found on this website is for informational purposes only. All preventive maintenance, service, and installations should be reviewed on a per-job basis. Always follow all manufacturers specifications and general industry standards. Any work on your heating system should be performed only by qualified, experienced personnel. Comfort-Calc or its personnel accepts no responsibility for improper information, application, damage to property, or bodily injury for applied information found on this website.

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