I have a question about power backup systems.

[u/Jumps-The-Name]

I dont own i rent and for 15 years things are fine without a backup im not too old that ima die from no heat from electricity outages and yes electric heat what a shame but my mother needs a place to live and so I am willing to give her my dinning room the only other room and same size as the main one it was a office not apartment but its a great place but if she is going to be here I want a power backup I have a gas 4400 watt generator new still need to break it in and has a 220 out and 2x 110v ac outs I want a system I can add to so any battery packs with wheels and has one or two dc in for solar panels and absolutely no add on battery connections other then the 1 or 2 DC solar ones and was thinking about a sump pump 20,000 watt inverter battery backup so when power is on the inverter is charging and upkeeping the battery but I want to use a 48v dc plus system I want to add batterys as I go dont need it to completely back up my power outlets ill just have to unplug and plug into the backup but if theres any better ideas out there plz let me know and any questions plz ask me because my mother is 69 and I cant let PA Winters kill her since the power dose go out often here! Thank you in advance!

[u/NotEvenNothing]

Honestly, a small diesel heater is a better option for your needs. They are around $100.

[u/I_VAPE_CAT_PISS]

A plug-in electric heater pulls about 1500 watts, so a 5 kWh battery (already real money) runs it maybe three hours. A January night in PA is a lot longer than that. Let the battery carry lights and phones. Heat should come off the 4400 you've got, run outside, or a diesel heater like the one suggested up top, with a CO detector in her room either way. Every plug-in heater turns a watt into the same warmth, so no fancier model fixes this. Fuel just holds way more energy than batteries do.

[u/Jumps-The-Name → u/I_VAPE_CAT_PISS]

Ok well I was looking at 48 volt heater elements and was looking to heat my place with these 48 volt elements if power dose go out! But i thank you for your reply. Do you think 48 volt elements would help this wasteful heating i have now i dont plan on useing the 220 heaters if the power is out so.

[u/AntiSonOfBitchamajig]

20kwh you mean? thats like 390#+ in a "single system"

"absolutely no add on battery connections" So.... you're just going to look for a permanent wall system? Because you're going to have an extremely hard time moving something like that... I'd go four 70 pound 300ah 12.8v LFPs on a cart system so you know.... you can actually take it apart and move it if you have to. Anderson connectors make it another level easier even. Not only that... its' the frugal way to make such a system. Get a inverter that can send signal to a generator to start / stop at 20%/80% .... you'd be in business.

But aside all that... you're main concern is heat? Look into "ventless heaters" with a thermostatic control, 20kbtu minimum for your area, 30kbtu would probably be preferred. They're cheap, ZERO ELECTRIC, and extremely reliable. We put them in every home we work on and they save the structure when the electric fails... set it to 50°F in the late fall and forget about it... it keeps a temperature floor (whatever you set it to) if the main unit fails.

[u/Kitchen_Region8456]

Ecoflow Delta 3+, WattCycle adapter, 48v 100ah battery. Gives you just over 6kwh of electrical storage as described, with option to add batteries in parallel for additional storage capacity as funds become available.