Will this deliver hot water even in a power failure like my tank heater does?
1616054
I believe it does absolutely require the 120Vac be supplied. The venting is by a fan, no fan no operation. In the manual in the troubleshooting section it says for no hot water check that gas and power are on. I would assume if you open a hot tap, the water will flow through the device, there just won't be a flame to heat it.
1616055
In the event of a power failure it will not generate hot water. It still does require a power source.
1616056
Yes it will it only needs the power for you to set up the temperature that's it
2079622
Yes. I have it hooked to my rainwater tank and it just turns on when the drip system goes on and there is demand for water. Okay if it runs dry, too.
297068
Depends on how much wattage the hot water tank needs (VOLTSxAMPS)=WATTS. Also, don't expect to get the full 400W out of this unit.
1776055
I am not a technician, and I actually chose not to invest in the Takagi, however, you ask an important question. Unless the unit has some kind of backup system that kicks in, when the power fails, then it won't be able to produce hot water on demand, and the unit would immediately shut off. When power returns, be thankful, re-boot and you're good to go!
561846
I would consider a small water pump on the hot supply at the waterheater. A plumber will need to help, as the return is on the cold water line. It uses very little electric power, (25-30 watts) and can be timed to turn on and off.
951678
No. It only has a line in, power button, and drain plug for the hot water tank.
2242593
Yes,it is. Mine is connected to standard CPVC hot water line. If I recall, the recommendation is to install on the return side. I connected the power to a timer to turn it off at night. The same with the HW tank. No need to heat water at night when no one is using it.
1962340
The manufacturer states it ca be used as a booster to the existing hot water supply. Hope this helps.
28256
No. It can supply one appliance at a time. During cold weather you need to turn down the flow rate for the water to get hot. This works well in a cabin not good for a house.
1945450
"Yes. It will give you hot water faster. But be aware, when your existing hot water reaches the tank, it will be REALLY hot! " WHy? Doesn't the thermostat work? It should not heat the water above the setting regardless of the input temperature.
449936
Yes. Best to disconnect from power to prevent hitting on/off button.expect/prepare for slight leakage where tank meets pump assembly.
1105199
it can work if you have enough water pressure to push thru the heater...our hot water supply falls of when useing 2 water sources at once..but you still get hot water just not the high pressure when say doing dishes and someone takes a shower..hope it helps its a good heater so far
2184364
Hi Li D, Don't hook up the hot water connection. This unit functions perfectly with cold water connection only. Mine does.
332537
You should really have a plumber fix this for you. Is the tank supplying the house already? Is so, you would have to branch off the main line to make a heater connection.
1542428
I would not suggest it. Few things. 1.) There are three heating "silos" within the unit one for each breaker. So one "silos" wouldn't be doing anything unless you got fancy with the wiring. 2.) I think the device uses only as many breakers as it needs, so if the water is unusually warm I can see it only pulling power from one breaker until it hits the set temperature. If the water is unusually cold it will pull from all three until it hits the set temperature. 3.) I do not believe the wiring within the unit is rated for 6-2 so you would probably mess something up.
1623963
Depends on how many amps/watts/volts it uses. If it uses too much juice it will fry it out-that's what happened to mine when I connected it to an electric heater. I'm not sure what it's capacity is but my electric radiant oil heater fried it.
876172
Resistance of the heater, R = (240 V)^2 / 5500 W = 10.47 ohmCurrent draw, I = V/R = (110 V) / (10.47 ohm) = 10.50 ampHeating Power at 110 V, P = (110 V)^2 / (10.47 ohm) = 1155 W, 21% of rated power.Normal wiring will be fine, just make sure its rated above 10.5 amp, 14 AWG or thicker should be sufficient.A standard 15 amp circuit will work, but your water will heat up slowly, 7.6 seconds per gallon per degree FahrenheitAt 240 V your heat up rate would be 1.6 seconds per gallon per degree Fahrenheit