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2. 12 Most Expensive Home Repairs (and How to Prevent Them) - AOL

   www.aol.com/12-most-expensive-home-repairs...

   A new water heater can run you more than $1,000, while repairs can cost about $500. Water heaters can last between six and 15 years if they’re taken care of properly.

3. Thermostatic radiator valve - Wikipedia

   en.wikipedia.org/wiki/Thermostatic_radiator_valve

   The replacement of a manual heating control with a conventional wax motor TRV has been estimated to save at least 280 kilograms (620 lb) of CO 2 per year (in 2011 for a British semi-detached house with 3 bedrooms and gas heating [1]). They are also considerably cost-efficient, using heat only when needed, and can reduce heating bills by up to ...

4. Tap (valve) - Wikipedia

   en.wikipedia.org/wiki/Tap_(valve)

   A gas tap is a specific form of ball valve used in residential, commercial, and laboratory applications for coarse control of the release of fuel gases (such as natural gas, coal gas, and syngas). Like all ball valves its handle will parallel the gas line when open and be perpendicular when closed, making for easy visual identification of its ...

5. Control knob - Wikipedia

   en.wikipedia.org/wiki/Control_knob

   Two control knobs for a heating/cooling system. The left knob controls the temperature while the right controls the fan speed. A control knob is a rotary device used to provide manual input adjustments to a mechanical/electrical system when grasped and turned by a human operator, so that differing extent of knob rotation corresponds to different desired input.

6. Shop the best QVC Black Friday sales — including Oprah's ...

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   Dyson Hot & Cool Bladeless Fan & Heater $300 $450 Save $150 This Dyson fan is like having a personal heater and air conditioner rolled into one, focusing and tailoring itself to you and your needs.

7. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   A hybrid water heater is a water heating system that integrates technology traits from both the tank-type water heaters and the tankless water heaters. [5] It maintains water pressure and consistent supply of hot water across multiple hot water applications, and like its tankless cousins, it is efficient and can supply a continuous flow of hot ...