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2. Thermostat - Wikipedia

   en.wikipedia.org/wiki/Thermostat

   The illustration is the interior of a common two wire heat-only household thermostat, used to regulate a gas-fired heater via an electric gas valve. Similar mechanisms may also be used to control oil furnaces, boilers, boiler zone valves , electric attic fans, electric furnaces, electric baseboard heaters, and household appliances such as ...

3. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   Electric point-of-use (POU) tankless water heater, wall-mounted under a sink (Germany) Tankless water heaters can be further divided into two categories according to their heating capability: "full on/full off" versus "modulated". Full on/full off units do not have a variable power output level; the unit is either fully on or completely off ...

4. Convection heater - Wikipedia

   en.wikipedia.org/wiki/Convection_heater

   Convection heater. A convection heater for single-room use. Illustration of the Model "S" Convection Heater by Sala Heater & Mantel, 1924. A convection heater, also known as a convector heater, is a type of heater that utilizes convection currents [1] to heat and circulate air. These currents move through the appliance and across its heating ...

5. That’s Fall, Folks! Get Ready for Chilly Nights With These ...

   www.aol.com/lifestyle/best-patio-heaters-beat...

   The Best Patio Heaters. Best Overall: Solo Stove Tower Patio Heater. Best Basic: Amazon Basics Propane Patio Heater with Wheels. Best Value: Hampton Bay Standing Patio Heater with Wheels. Most ...

6. HVAC control system - Wikipedia

   en.wikipedia.org/wiki/HVAC_control_system

   HVAC control system. HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be ...

7. Instant hot water dispenser - Wikipedia

   en.wikipedia.org/wiki/Instant_hot_water_dispenser

   An instant hot water dispenser or boiling water tap is an appliance that dispenses water at about 94 °C (201 °F) (near- boiling). There are hot-only and hot and cool water models, and the water may be filtered as well as heated. Instant hot water dispensers became popular in the 1970s. Instant hot water dispensers are very similar to portable ...