[RE-wrenches] Electric boiler usage?

[mac Lewis]

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_solar at 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 <dahlsolar at gmail.com>
> *To:* Wrenches <RE-wrenches at 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!!!
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-- 



Mac Lewis

*

"Yo solo sé que no sé nada." -Sócrates
*
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