How to raise temp on instant hot water faucet

How quickly the water coming out of any specific faucet "gets hot" is most often a function of the distance from the water heater. A faucet that is a significant distance from the water heater must first allow all the cool/cold water in the lines to flow through before the hot water will begin to flow from the faucet. You can estimate that distance. look here:
http://waterheatertimer.org/pdf/How-far-hot-water-travels-in-household-pipes-in-30-seconds.pdf

The wait can be solved to some degree with a continuous flow pump, but this uses (wastes) lots of energy. Installation of a tankless heater in close proximity to the faucet can also solve the "problem". Be sure its is capable of raising the water temp at the flow rate as you require.
Waiting for Hot Water

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If this is instant heat faucet, then contact manufacturer.
Most these faucets have 1 year limited warranty
Replace faucet?
http://waterheatertimer.org/How-to-install-point-of-use-water-heater.html

Gene


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Usually happens when the temperature is set too high, check your instruction book and set it to the advised temp. Also the filter in the nozzle may need a clean.

1) Guesses: Sounds like a bad single-handled faucet cartridge, or low water flow at faucet, or clogged water filter.
Replace faucet cartridge, clean the aerator, and/or clean sediment out of pipes below sink, and clean water filter at tankless unit each month.

2) For exact measure of problem:
Typical faucet can have 2 gallon per minute flow rate.
2 gpm flow rate means faucet fills 1 gallon container in 30 seconds. Test faucet using 1 gallon container and a cooking timer to get flow rate.
Clean aerator to improve flow rate. Compare kitchen flow rate with other faucets in home.
http://waterheatertimer.org/Low-hot-water-pressure.html

Most homes have 1/2" diameter pipe running to kitchen faucet.
100 feet of 1/2" diameter pipe holds 1.2 gallons of water. This assumes no sediment build-up inside pipes.
http://waterheatertimer.org/Water-heater-recirculation-system.html

Assuming only hot is turned on: If faucet is 100 feet away from water heater, and pipe diameter is unobstructed 1/2" diameter, and faucet has 2 gallon per minute water flow, then hot water should arrive in 36 seconds.
50 feet away, and hot water should arrive in 18 seconds.

If kitchen has single handled faucet, and the handle is raised in the middle, then equal amounts of hot and cold water are drawn at same time. This doubles amount of time for hot water to arrive.

If single handle faucet has a bad cartridge, then faucet can have crossover.
Crossover means that cold water can enter the faucet even if faucet is turned to hot.
Bad single-handled faucet cartridge can delay or stop the arrival of hot water.
http://waterheatertimer.org/Crossover.html

Tankless require maintenance including cleaning combustion parts yearly, de-lime heat exchanger frequently, and clean water filter each month.
http://waterheatertimer.org/pdf/Tankless-maintenance.pdf
http://waterheatertimer.org/pdf/Bosch_Overcoming_fluctuating_temps.pdf
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

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Make sure the washer water line is hooked to the hot water supply line in the house. If it takes a while to get hot water when you turn on the sink faucet, it will take longer to bring hot water to the washer due to the lower flow volume. If you bring hot water to the faucet first, then start the machine, it should solve this problem. The washer's heater should then raise the temperature to final requirements. Hope this helps!

this is a problem they didn;t tell any one about, there is a min of 1 gpm that you have to run for it to sence for the unit to come on, if not the unit will not detect the water is even runnig there for will not come on,, as for the kit faucet, it might have a temp control and it may need to have a cartridge change, the water comming from the tankless is nothing like the old tank heater, the water only losses aprox 1 or 2 degree where a tank heater losses almost 5 or more because of the way the cold water is fed into the unit,, thats whay the sprayer works and the faucet doesn't ,, you have control on the sprayer unlike turning the faucet on,,

Is this only happening in your shower? Or through the hole house? Maybe you shower head has a flow restrictor in it. Try removing it!

The hot water is expanding a little rubber o-ring and its allowing air to wistle through because it is not sealing right. Replace the rubber washer or o-ring that is on the hot side.

hi try to just regulate the temp by turning down the water flow from your taps if more cold is coming in than hot turn cold water down a bit to your satisfaction thanks THE APPLIANCE DOC