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Generator Question
Posted by EXPLAYER on 9/5/19 at 9:13 pm00
Looking to buy generic for the house. House is 1,900:square feet. We have two fridges, central AC unit, we would like to have enough power to keep all lights going along with the other appliances. What size generator should I purchase. We have a guy coming out, I don’t want to get talked into something we don’t need but do want enough power to keep things working. Big purchase so am looking for knowledgeable responses , thanks all.
re: Generator QuestionPosted by Hopeful Doc on 9/5/19 at 9:20 pm to EXPLAYER
Try this calculator from Cummins and pick/choose what's important to you.
Gas vs electric appliances will make a decent difference too
Gas vs electric appliances will make a decent difference too
re: Generator QuestionPosted by EXPLAYER on 9/5/19 at 9:33 pm to Hopeful Doc
We have gas in subdivision, is that better way to go or should I do my own propane?
re: Generator QuestionPosted by EXPLAYER on 9/5/19 at 9:42 pm to Hopeful Doc
Thanks bud. Found everything I needed there
quote:
We have gas in subdivision, is that better way to go or should I do my own propane?
Gas would be better, because you already have it.
We could play what ifs all day. I think if its bad enough that it takes out tje gas lines, you should probably just pack up and head out.
re: Generator QuestionPosted by Hopeful Doc on 9/5/19 at 9:56 pm to Dancepants
quote:
I would go natural gas
I can't think of a scenario where you'd be thankful you went propane over natural with both available.
Like the last guy said, if you're out of natural gas, how much propane you have on site is the least of your worries.
re: Generator QuestionPosted by EXPLAYER on 9/5/19 at 10:16 pm to Hopeful Doc
Ok, thanks all . I also thought natural gas was best. We lose electric when somebody coughs.
re: Generator QuestionPosted by Hammertime on 9/5/19 at 10:36 pm to EXPLAYER
10kW nat gas, and get a soft start for your A/C compressor
re: Generator QuestionPosted by EXPLAYER on 9/5/19 at 10:55 pm to Hammertime
Two fridges 1,900 sq feet all electric all I need is 10 kw? I def want to make sure we don’t have any issues.
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re: Generator QuestionPosted by Hammertime on 9/6/19 at 1:00 am to EXPLAYER
I run everything in my 1200sqft house except the central A/C off of a portable 5500 on nat gas. That's including two full-sized refrigerators (one new and one 20 years old) and two window units. I can run the microwave, all TVs, and lights with no problem
Most of the time, people don't need as much as they buy
Most of the time, people don't need as much as they buy
re: Generator QuestionPosted by EXPLAYER on 9/6/19 at 8:12 am to Hammertime
May I ask what’s a soft start. Man I am really trying to learn this on the run. I do know salesman will come in and def try to sell me the world. Appreciate you sharing your knowledge.
re: Generator QuestionPosted by Hammertime on 9/6/19 at 8:54 am to EXPLAYER
This is what I remember from researching it a few years ago, so don't quote me:
Your A/C needs a certain amount of amperage to start, and a lesser amount to run. A soft start basically steps up the motor voltage in stages to get it running, where it normally just jumps up to the full starting voltage all at once, which also means the full amperage, and it'll kill your generator.
For example, my compressor'starting amperage is something like 160, and running is 30. I can start up 30A of random equipment at once on my generators, but not 160A. The engine can't handle that much load, and it dies.
I think the whole setup was supposed to be like $600 if I bought and installed everything.
Your A/C needs a certain amount of amperage to start, and a lesser amount to run. A soft start basically steps up the motor voltage in stages to get it running, where it normally just jumps up to the full starting voltage all at once, which also means the full amperage, and it'll kill your generator.
For example, my compressor'starting amperage is something like 160, and running is 30. I can start up 30A of random equipment at once on my generators, but not 160A. The engine can't handle that much load, and it dies.
I think the whole setup was supposed to be like $600 if I bought and installed everything.
This post was edited on 9/6 at 8:55 am
quote:
Two fridges 1,900 sq feet all electric all I need is 10 kw? I def want to make sure we don’t have any issues.
I dont think a 10kw generator is going to do it. All the calculators for an all electric house are spitting out a 20kw.
Ill check with a couple people on monday though and see what they think.
re: Generator QuestionPosted by highpockets on 9/6/19 at 2:26 pm to Hammertime
quote:
This is what I remember from researching it a few years ago, so don't quote me:
Your A/C needs a certain amount of amperage to start, and a lesser amount to run. A soft start basically steps up the motor voltage in stages to get it running, where it normally just jumps up to the full starting voltage all at once, which also means the full amperage, and it'll kill your generator.
For example, my compressor'starting amperage is something like 160, and running is 30. I can start up 30A of random equipment at once on my generators, but not 160A. The engine can't handle that much load, and it dies.
I think the whole setup was supposed to be like $600 if I bought and installed everything.
I have a micro air easy start on my camper, so I can run the A/C on a 2k inverter. They do make one for home use.
Micro - Air
re: Generator QuestionPosted by mdomingue on 9/6/19 at 2:27 pm to Hammertime
quote:
For example, my compressor'starting amperage is something like 160, and running is 30. I can start up 30A of random equipment at once on my generators, but not 160A. The engine can't handle that much load, and it dies.
great example, the rule of thumb for across the line starters is starting current = about 6 times running current but can be up to 10. With a soft start you can get to under 3.
re: Generator QuestionPosted by cajuncarguy on 9/9/19 at 12:29 am to EXPLAYER
quote:
Looking to buy generic for the house.
Don't get a Generac. They have more quality issues compared to Cummings or Kohler.
re: Generator QuestionPosted by footballdude on 9/9/19 at 11:17 am to EXPLAYER
(no message)
This post was edited on 1/11 at 1:43 pm
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