02-658 C.M.R. ch. 8, § 16 - Use of Priority Controls
A priority control for installation of an oil-fired warm air furnace and an oil-fired hot water heater when the existing chimney flue is not of adequate size to accommodate both appliances is allowed. The chimney must be lined. A priority control is required when replacing an existing furnace or water heater when the chimney is not properly sized for both appliances.
Notes
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No prior version found.