Battery Back up

Any Opinions?

The guy who sold me this claims it should run my Keystoker 90 for about 24 hrs. with out power.

That's quite the unit he put together! Looks good. I don't think you'll get 24 hrs, but it'll do for a while and that's all that's usually needed. The only real way to know is try it.
So many questions. Is it set up so you plug it in, you plug the stove into it and that's it? Is it pure sine wave or modified sine wave? Deep cycle battery? How many amp hours? How many watts is the inverter?
If it's pure sine wave I'm sure it'll serve you well. If it's modified sine wave we'll have to see if your motors accept it as part of the family or if they see it as a bad cousin.

Clever use of 2 gang electrical box. Looks good, will be interested in the results of a trial run.

Please post your results of your trial run. We lost power last weekend when my Keystoker was at idle. It took me at least 10 minutes from the time the power went out to get my generator powered up and a cord run to the basement. By this time, I barely had the presence of any remaining red coal to get the fire going again and had to motivate the fire with my mapp gas torch. Even if your battery backup will only sustain you for an hour or two to give you plenty of time to switch to a more reliable power source in the event the power doesn't come back on, I'd say it was well worth it.

24 hours? depends on the type of battery, Ah rating, and how much power your inverter and stove require.
Depends on how the stove is running, if you just have the stoker and combustion blower, it may last quite a while, add in the covection blower, will reduce the time.

I just plugged my keystoker 90KDV into my KiloWatt meter.
3.23 AMPS /215 watts (With everything running)
2.75 amps /175 watts (DV, combustion & convection fans running, no stoker)

WNY wrote:3.23 AMPS /215 watts (With everything running)
2.75 amps /175 watts (DV, combustion & convection fans running, no stoker)

Something is whacky! I recently got a kill-a-watt thingy. Someone said they may not be the cat's meow and may interpret things not so well. In this case..... 3.23 amps should be around 390 watts....amps times volts = watts. (3.23 X 120=387) I just tested my kill-a-watt on my drill press. The tag on the motor says 5.4 amps. Using the meter it shows 5.7 amps.... OK, fine.... but it shows 245 watts, much less than the 655 we'd expect. Then I tried a heat gun. The kill-a-watt thingy is almost spot on with it. I turned up the heat until it read 10 amps and it showed 1,100 watts...very close to reality. So, maybe the kill-a-watt meters work better with light bulbs and heaters, but not so well with motors? Or... trust the amp reading and do the math separately.

Freddy wrote:So, maybe the kill-a-watt meters work better with light bulbs and heaters, but not so well with motors?

True

Freddy wrote:Or... trust the amp reading and do the math separately.

True for sine wave currents only. You only have sine wave currents with resistive loads. Toasters and incandescent light bulbs will measure correctly. Everything else, no.

Captain Michael wrote:The guy who sold me this claims it should run my Keystoker 90 for about 24 hrs. with out power.

How many Watts does the 90 draw?
I get about 3 to 3 1/2 hours run time off a similar-sized battery, but my DVC-500 draws around 189 watts.
Building a TRUE Sinewave UPS for my DVC-500

I will test it tonight. 125 AH deep cycle, 750 converter.