[rocksnhills]

Hello,

I'd like to shift some of the electrical demand for the blower in my furnace to off-peak hours using batteries, since I have time-of-day pricing from my electric utility. However, I'm worried about damaging the furnace due to the relatively slow transfer time of my battery. How well do furnaces tolerate repeated power glitches?

My furnace is a Carrier Performance single-stage, natural gas furnace from 2012 with an ECM blower and 96% efficiency (model #59SP5A040E141110). It's actually now a dual-fuel system with a newly installed Carrier Performance 16 single-stage heat pump (model #25HPB6), but the heat pump would never be powered from the battery. My thermostat is a Nest E with a common wire. I recently had an electrician place an outlet and a plug in the circuit for my furnace so that I can plug it into a battery with an inverter.

My battery is an EcoFlow Delta Pro. It claims a transfer time from wall power to battery of < 30ms. My idea is to hook up the battery to an outlet timer to only allow the battery to charge and the furnace to be powered from the wall outlet when electricity is cheap. The timer would cut the wall power when electricity becomes more expensive to cause the battery to be used, and that's when the < 30ms glitch would occur. Does anyone have any idea whether I could be setting myself up for a blown controller board or burnt out blower?

Thanks in advance!

 

[mgenius33]

Sounds like a great start you bought a NEST, those always work well with everything. :D:

Joking aside, you came to the wrong website for DIY help. There's a note in bold red letters at the top of the forum page. Please review the forum rules.

 

[Mr Bill]

My furnace is a Carrier Performance single-stage, natural gas furnace from 2012 with an ECM blower

You definitely don't want your ECM motor running off this kind of power. :eek2: Also, that ECM is probably out of warranty, or close to being out of warranty by now, and those motors are NOT cheap. Just my thoughts.