US lawMassachusettsRegulations105 CMR — Department of Public Health105 CMR 420.00 — State sanitary code chapter III: Farm labor camps420.632105 CMR 420.632Venting of Permitted HeatersYear: 2026Length: 28 wordsOfficial source Space heaters and water heaters, except electricalones, shall be properly vented to a chimney or duct leading to the outdoors in accordance with applicable local and state codes.Previous105 CMR 420.631Next105 CMR 420.633