Some of the luxury  homes I am rating have features that can use additional energy, but may or may not be outside of the thermal envelope.

I would like to have a document to give the designer that clearly states how I would account for these in a rating.  I also want to give an accurate and honest rating and discourage energy-hogging features.

In some cases, there is a question of whether or not an area is part of the thermal envelope.  For the sake of discussion, let me give some examples of what I have run into, or could run into in the future:

- an outdoor swimming pool that is heated by the boiler that provides the home's indoor heat and DHW heat.

- an attached garage with its own zone for in-floor heat.

- an attached multi-season porch with its own zone for in-floor heat

- a basement storage area that is under an outdoor porch floor.  No heat source and separated from basement by insulated wall and door.

- driveway snow melt system (I haven't run into that one yet, but it could happen)

 

Frankly, I'm going to be the bad guy here and I don't want it to sound like its just my opinion.

 

Advice anyone?

 

 

 

 

Views: 168

Replies to This Discussion

You have 5 items.

# 4 is obviously outside the Thermal Enclosure

# 5 should have its own source of heat and would be a non-rated item; if it shares a heat source then it is up to your provider

The rest need a decision by your provider. Perhaps even RESNET.

I don't have any good advice, but my opinion is that the owners of homes with obvious energy waste "just because I want it" need to include the usage in the rating, and compensate otherwise if they want a reasonable rating.  Energy use is energy use no matter where it is used.

A couple that I've seen (on the same house): N. gas space heater on a screened porch and a 250K BTU patio heater. 

And the most ridiculous one that I've read about (so far): air conditioned open patio, along with two patio heaters at the "Vision House".

So, there are at least two bad guys so far...

RSS

Discussion Forum

How To Deal With Sprinkler Piping Installation

Started by Stan Kuhn. Last reply by Stan Kuhn Jun 17, 2015. 7 Replies

HERS rating & heat losing features

Started by John Kuiper. Last reply by Stan Kuhn Sep 14, 2013. 2 Replies

Are Home Energy Ratings Scalable and Marketable?

Started by Energy Efficiency Eric. Last reply by Tom Maides Aug 30, 2011. 19 Replies

Latest Activity

Profile IconBryan McIntyre and Michael W. Ford joined Home Energy Pros Forum
4 hours ago
Profile IconRob Vehring and Luke Yang joined Home Energy Pros Forum
yesterday
KRicket Smith-Gary commented on Efficiency First California's blog post Is Health The Future of Home Performance?
"While discussing health benefits for various retrofits and new construction, please also keep in…"
Monday
KRicket Smith-Gary liked Efficiency First California's blog post Is Health The Future of Home Performance?
Monday
goodtidings comfort is now a member of Home Energy Pros Forum
Monday
Payal Nene posted a discussion
Monday
Tina Baldt added a discussion to the group Job Board
Thumbnail

Hiring QC Specialist - Chicago/Evanston, IL

CMC is looking for a QC Specialist to join our growing team in the Chicago, IL area.Please see…See More
Sunday
Jim Gunshinan posted a blog post

Using God Talk—or Not—to Help the Planet?

I am always impressed with the work of Susan Shelton and the Shelton Group. So an email message…See More
Friday

Photos

  • Add Photos
  • View All

© 2018   Created by Home Performance Coalition (HPC)   Powered by

Badges  |  Report an Issue  |  Terms of Service