How to Install a Hot Water Dispenser | HomeTips
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How to Install a Hot Water Dispenser

A hot water dispenser fits into a hole in the sink rim.

Advice and information on installing an on-demand hot water dispenser in your kitchen sink

To install a hot water dispenser, the sink top must have a hole that can receive the spout. Most hot water dispensers are installed during kitchen remodeling in new sinks that have the proper number and configuration of holes needed.

Though retrofits can be a little bit tricky, they’re not impossible. If your sink has a sprayer, you may be able to remove the sprayer and use the hole that it occupied. Or, if you have a separate spout for purified water, you can replace that one with a hot-and-cold model. Or, check to see if the sink has an extra hole that hasn’t been punched out yet. In a real pinch, you can have a plumbing contractor drill a hole in stainless steel or porcelain, though you risk cracking porcelain.

Plastic tubing simply plugs into the small electric heating unit under the sink.

Though units sold through specifiers such as designers, kitchen shops, and wholesale plumbing houses are generally installed by plumbers, those sold through home centers and hardware stores come with complete instructions for do-it-yourself installation.

With most models, a “saddle valve” is clamped onto the water pipe, and then the appliance is connected to this valve with 1/4-inch copper tubing, using compression fittings. Plastic tubes for carrying water from the heating unit to the spout simply plug into connectors in the top of the unit.

Most appliances have a three-pronged plug that you simply plug into a grounded, 15-amp receptacle (in some cases, they may share the receptacle used by a garbage disposal, but be sure to follow the manufacturer’s directions and adhere to local building codes).


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About Don Vandervort
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Don Vandervort developed his expertise more than 30 years ago as Building Editor for both Sunset Books and Home Magazine. He has written more than 30 home improvement books and countless magazine articles. He appeared regularly on HGTV’s “The Fix,” and served as MSN’s home expert. Don founded HomeTips in 1996.

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