Hi, BAretired and Tmoose,
Thanks for your input. The foundation walls are masonry, the basement is finished, so I can't see cracks if any, but I presume there must be cracks in the floor since solid concrete slag must be flat, am I correct? Can the issue with basement floor/subsoil present a...
Hi,
Are bowing or sagging in basement floor any indication of a foundation problem or other structural problems? I was shown a 1925 house where all residential floors look level, but the basement floor has bowing or sagging as you walk along its long side (i.e. as you walk parallel to the...
Thank again to all who responded. Having read the posts here and in other forums I realized UPS with an external battery would not be a good choice: it may shut down too early thinking the battery is discharged.
As itsmoked suggested, a deap cycle battery with inverter purhaps is the way to go...
VE1BLL,
A UPS or an inverter usually have a low battery shutdown. They are supposed to regulate the AC voltage down to this threshold. I can experiment first with a lab supply.
However, I just realized another thing. My furnance uses a 60Hz transformer that converts 120VAC into 24VAC for the...
People,
Thank you all for your input.
A little clarification: I has steam heating running on natural gas, so no heavy motors or blowers. The power is needed only to operate a few valves that turn the boiler on and off. Overall power may be under 20W. The goal is survive a possible long term...
Hi,
Anyone has any ideas about pitfalls on using a regular UPS for desktop PC with an external auto battery?
I am going to make a backup power source for my natural gas boiler (steam heating). So, I plan to use a conventional UPS (such as APC's ES350) and wire an auto battery parallel to UPS's...
Hi, David,
>>The power factor of a starting motor is very low, lots of reactive power, but not a great increase in real power above running power. Depending on the load type the starting (real) power could be well below the running (real) power even though the starting current is well above...
