Here is a useful resource that can be a first step to figure out an appliances usage, they do have boilers http://www.ahridirectory.org/ahridirectory/pages/home.aspx
As far as figuring out what this boiler is expected to use over the course of a year, I'd get someone with HVAC software to model the house, probably the same guy that will size the boiler. Good luck! On Sat, Aug 27, 2011 at 7:51 AM, Darryl Thayer <daryl_so...@yahoo.com>wrote: > For cost savings > besure to use the rate schedules. avaiable to reduce costs > > I am working today on a energy efficiency house (3000 sqft) northern > Minnesota their heating system is infloor (concrete floor) they heat with > 12 kW boiler, response is slow, but it meets the heat load. even at (-30 to > -40 F with wind) Another house on my list is 2500 sqft well insulated 15 kW > but they are dissapointed with getting cold at times. (in floor > concrete) > > Caution on the heat below the floor, I have seen disappointed perple having > having 180-190 water and not enough heat. The house must be very very well > insulated. I can work with you on this off line, I may even have some > of my course materials from when I taught super insulated houses. > > *From:* Jesse Dahl <dahlso...@gmail.com> > *To:* Wrenches <RE-wrenches@lists.re-wrenches.org> > *Sent:* Saturday, August 27, 2011 8:05 AM > *Subject:* [RE-wrenches] Electric boiler usage? > > Wrenches, > > I am working with a family that wants to install a grid tied system that > will offset, as close as possible, 100% of it's electrical usage. We have > calculated for almost all the loads except the electric boiler. > > Problem, they don't know which boiler they will be using. The home will be > 1800sq ft, it will have the in floor heat between the floor joists and the > joists will then be insulated with foil-faced insulation. > > Has anyone calculated a boiler like this out for annual electrical usage? > > > Thanks as always, > > > Jesse > > Sent from my iPad!!! > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > > > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > > -- Mac Lewis * "Yo solo sé que no sé nada." -Sócrates *
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