[RE-wrenches] Forced air Furnace

[Dana]

Drake,

All the conventional units I have amp clamped over the years are pushing
900-900+ watts per hour. I do not recommend them ever & to date I have never
found a lower wattage blower. I would assume that a permanent magnet motor
would fit this suggestion, but I have not found one.

For off grid I recommend: Radiant floor heat first and hot water base board
second long before hot air. Air is a better insulator than a heat transfer
agent.

The new ECM (electronically commutated motors) pump motors are basically at
DC permanent magnet motor power draws [Taco & Grundfoss] these days.

 

Best of luck with this one.

 

----------------------------------------------------------------------------

Dana Orzel                              Great Solar Works, Inc. 

C - 208.721.7003                       dana at solarwork.com

Idaho Contractor - # 028765         Idaho PV # 028374

NABCEP # 051112-136                        <http://www.solarwork.biz>
www.solarwork.biz

"Responsible Technologies for Responsible People since 1988"  

P Please consider the environment before printing this email.

 

 

From: RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> On Behalf Of
Drake
Sent: Thursday, August 23, 2018 2:37 PM
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Subject: [RE-wrenches] Forced air Furnace

 

Hello Wrenches,

What is the best choice for a propane, forced air furnace for an off grid
house? We would prefer one that doesn't have a phantom load, although the
transformer for the thermostat may not be avoidable. Low blower current
would be preferable. The furnace AC will be powered by a Magnum 4448 PAE.

Thank you,

Drake 

Drake Chamberlin
Athens Electric LLC
OH License 44810
CO License 3773
NABCEP Certified Solar PV 
740-448-7328
http://athens-electric.com/ 

 

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