Eric Walker added Rocket mass heater (RMH) and Masonry heater - Wikipedia to Masonry heaters, and added Masonry heaters to Heaters

Eric Walker added Masonry heaters to Heaters, and added Heaters to Heat and Heating, ventilation, and air conditioning (HVAC)

Eric Walker added Heaters and a number of links to Heating, ventilation, and air conditioning (HVAC), and added Heating, ventilation, and air conditioning (HVAC) to Architecture and buildings

Eric Walker added Temperature, Heaters and Calorimetry to Heat, and added Heat to Physics