Tankless Water Heater for Kitchen Sink
dirtpour3
| Posted in Energy, Heating & Insulation on
Takes a while for hot water to get to kitchen sink. Thinking of a point of use unit.
Any suggestions for brand, sizing and fuel type? Natural gas is available. Thanks.
Replies
One trick is to hide a small (5-10 gallon) electric tank somewhere, then feed it from the hot water line. You get hot water quickly, and before the small tank is emptied the hot water begins to flow from the main tank. Operating cost is relatively small since a good electric has low standby loss, and most of the hot water actually comes from the main tank.
If you can hide
a small electric tank for hot water at the kitchen sink, skip the tankless entirely. The cold water slugs that happen every time you turn the hot on and off make a tankless a definite minus at the kitchen sink
One thing to look at is whether you can run a new line directly from the water heater to the sink in 3/8" tubing. A lot of the time the existing piping is too large and/or too indirectly routed, causing long wait times.