Forum Discussion

pianotuna's avatar
pianotuna
Nomad III
Dec 21, 2014

autoformer

Hi,

I've decided it is time to get serious about an autoformer.

Can I get one that would cover only the roof air (nothing else worries me brown out wise)? Or am I better with one that does the 30 amp service?

Draw on the air conditioner was a whopping 1900 watts. The campground breaker did flip off twice.


I did find a few days last summer where I was at a 30 amp RV campground where voltage was lower than I'm comfortable with. I did switch off the water heater, turned off the converter and moved the fridge to propane, but still had low voltage issues.

What autoformer would you choose (link please) and why?

I wonder if there is a way to use the Magnum inverter to do voltage support?
  • Just run the air through the Magnum. Should not be a big deal.
    I assume you bought the Magnum that does do the load support similar to Victron.
  • The Magnum obviously isn't a 110VAC regulator, and like the A/C is going to work harder when faced with low input. So... I'd buy a real whole house Autoformer, do it right and protect the toys.
  • pianotuna wrote:
    I wonder if there is a way to use the Magnum inverter to do voltage support?
    I think we've had this discussion before and decided the Victron unit would work.

    Other than running your air on inverter and supplementing with gen->converter-> batteries, I don't know.
  • palehorse89 wrote:
    Look and study up here https://hughesautoformers.com/
    I have had the 50 amp. model in service for over 5 year now......works well. I would not be without......


    X2
  • I would suggest either the Hughes or the PowerMaster. NOT the Frank's. I've had the PowerMaster for 5 years and it works great. It also has built in surge protection(higher jule rating than Hughes)
    PowerMaster
    Even with an autoformer, your electrical management ideas(waterheater, fridge, etc.) on propane is a good idea.
  • Look and study up here https://hughesautoformers.com/
    I have had the 50 amp. model in service for over 5 year now......works well. I would not be without......

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