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: 178

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

Leslie Jackson replied to Leslie Jackson's discussion DIY Filter Solution for an Evaporative Cooler, anyone?
"Thanks Rich, I hope they thought of that, but you are on to something. I think I learn more doing…"
2 hours ago
grey staples commented on Jim Gunshinan's blog post Our First Year with Solar Panels, by Chris Stratton
"Curious to know how the kWh production turned out relative to what the installer indicated you…"
2 hours ago
Brennan Less commented on Jim Gunshinan's blog post Our First Year with Solar Panels, by Chris Stratton
"Hey Chris, y'all are kicking butt!! I'm sure your new HVAC won't use any energy,…"
2 hours ago
Rich Manning replied to Leslie Jackson's discussion DIY Filter Solution for an Evaporative Cooler, anyone?
"Have them call a HVAC contractor and install a filter system"
2 hours ago
Rich Manning replied to Jerry Needham's discussion Condensation on ceiling and walls of master bedroom
"Looks like a leaking ridge vent"
3 hours ago
Jonathan Nadle liked Jim Gunshinan's blog post Our First Year with Solar Panels, by Chris Stratton
3 hours ago
Matt Peterson posted a blog post

Gas Line Installation In Portland OR Code Basics

When you're looking to undertake any kind of a remodel or repair in your home it's important to…See More
3 hours ago
Brennan Less liked Jim Gunshinan's blog post Our First Year with Solar Panels, by Chris Stratton
3 hours ago
Pearl Home Certification posted a blog post

Press Release: HomeSmart International Joins the Pearl Broker Advantage Program

Vienna, Virginia and Scottsdale, Arizona – July 19, 2018 – Pearl Certification and HomeSmart…See More
4 hours ago
Franco Oyuela commented on Allison A. Bailes III's blog post The Ductopus or the Centipede - Which HVAC Duct System Is Better?
"Many older homes were constructed without air ducts. Ductless systems can provide much needed air…"
4 hours ago
Franco Oyuela commented on Chris Laumer-Giddens's blog post The Ductless Mini-Split Heat Pump's Big Brother - CITY MULTI
"The compact design and long piping system gives homeowners free reign for designing a ductless…"
4 hours ago
Terry Hill's event was featured

Passive House Institute US 2018 Conference at Boston

September 19, 2018 at 6pm to September 23, 2018 at 7pm
Annual conferenceSee More
4 hours ago
Franco Oyuela commented on Allison A. Bailes III's blog post How the Heck Does a Heat Pump Get Heat from Cold?!
"Like conventional central heat pumps, ductless mini-split heat pumps manipulate refrigerant to move…"
4 hours ago
Leslie Jackson replied to Leslie Jackson's discussion DIY Filter Solution for an Evaporative Cooler, anyone?
"Thanks, Larry! You are probably not confused! Apply skin, not a Band-Aid ... or something like…"
5 hours ago
Larry Weingarten replied to Leslie Jackson's discussion DIY Filter Solution for an Evaporative Cooler, anyone?
"Hello,  I'm probably confused, but I'd want to know where the dust and dirt are…"
5 hours ago
Diane Chojnowski posted discussions
6 hours ago
Leslie Jackson posted a discussion

DIY Filter Solution for an Evaporative Cooler, anyone?

If your general "info@" e-mail inbox is like mine, it is 95% SPAM but once in a while, as long as…See More
22 hours ago
Franco Oyuela commented on Silvie Votrubova's blog post Duct Testing Accuracy
"The ducts that are part of central heating and cooling systems offer one of the best opportunities…"
yesterday
DEREK KENNA joined Kim Tanner's group
Thumbnail

TEC

Discussion group for The Energy ConservatoryHave a question about residential or big building air…See More
yesterday
Don Fugler replied to Linda Wigington's discussion Good Eating with Reduced Cooking Emissions in the group Kitchen Ventilation
"I found that I was less likely to prompt a large spike when I started the pan on medium heat rather…"
yesterday

Photos

  • Add Photos
  • View All

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

Badges  |  Report an Issue  |  Terms of Service