Hans Joachim Preiss's Discussions (10)

Discussions Replied To (10) Replies Latest Activity

"Good discussion. I came across this comprehensive presentation by Gas Consultants on…"

Hans Joachim Preiss replied on Friday to Does altitude affect AFUE? or just the input/output BTUs?

21 yesterday
Reply by Dale Pickard

"Rod, Correct me if I am wrong, but you're saying "AFUE" but really mean "actual effi…"

Hans Joachim Preiss replied Jun 26 to Does altitude affect AFUE? or just the input/output BTUs?

21 yesterday
Reply by Dale Pickard

"Many good points made here. As has been said before, low ground water temperatures a…"

Hans Joachim Preiss replied Apr 23 to Can tankless water heaters provide hot water even when the groundwater is fairly cold?

19 May 10
Reply by Morgan M Audetat

"The type and concentration of pollutants very much depends on the people living in t…"

Hans Joachim Preiss replied Jan 7 to Basing air exchange on house volume??

17 Jan 8
Reply by Dennis Heidner

"We should mention that Transformations' homes in MA have 12" Double Studded R-45 Low…"

Hans Joachim Preiss replied Feb 24, 2014 to Ductless Heat Pump vs Radiant

11 Feb 24, 2014
Reply by Hans Joachim Preiss

"Quality of life is very important to me, and I am trying to convince my customers th…"

Hans Joachim Preiss replied Feb 23, 2014 to Ductless Heat Pump vs Radiant

11 Feb 24, 2014
Reply by Hans Joachim Preiss

"James wrote 4800 HDD, which I would not consider a mild climate. Super insulated hom…"

Hans Joachim Preiss replied Feb 23, 2014 to Ductless Heat Pump vs Radiant

11 Feb 24, 2014
Reply by Hans Joachim Preiss

" 100% electric makes it easier to go net zero. A heatpump allows both heating and c…"

Hans Joachim Preiss replied Feb 23, 2014 to Ductless Heat Pump vs Radiant

11 Feb 24, 2014
Reply by Hans Joachim Preiss

"Do you have any need for cooling or dehumidification? If you don't, I don't see that…"

Hans Joachim Preiss replied Feb 20, 2014 to Ductless Heat Pump vs Radiant

11 Feb 24, 2014
Reply by Hans Joachim Preiss

"Could it be that you have a boiler with tankless coil? Boilers are for hydronic heat…"

Hans Joachim Preiss replied Jun 8, 2013 to Selecting a Water Heater

15 Jul 16, 2013
Reply by Joe Romero

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Bijou Lulla posted a blog post

ENERGY EFFICIENCY RETROFITS.....IN NUMBERS WE TRUST

There has been much ado about the recent paper published by E2e; Do Energy Efficiency Investments…See More
5 hours ago
Mariusz Chorazy posted a blog post

Here are a few tips to keep your air conditioning bill low

TAKE GOOD CARE OF YOUR AIR CONDITIONER – Like any major appliance, your AC requires regular…See More
yesterday
Dale Pickard replied to Rod Fox's discussion Does altitude affect AFUE? or just the input/output BTUs?
"Morgan, I got this below from the Knight installation manual. I note a few things, -These…"
yesterday
Dale Pickard replied to Rod Fox's discussion Does altitude affect AFUE? or just the input/output BTUs?
"Hans, The car manufacturer's are doing it with mass flow sensors and oxygen sensors…"
Saturday
Dale Pickard replied to Rod Fox's discussion Does altitude affect AFUE? or just the input/output BTUs?
"I was trying to avoid naming manufacturers, but I was going by the published information for the…"
Saturday
Eric Kjelshus replied to Rod Fox's discussion Does altitude affect AFUE? or just the input/output BTUs?
"I look at this not about AFUE,  but flue gas dewpoint.  If your burn rate is rotting the…"
Saturday
Bob Blanchette replied to Kirsten Richnavsky's discussion Crawl spaces and attics: OSHA to implement new rule on confined spaces
"Keeping HVAC equipment out of attics should be part of the new code. "
Saturday
Linda Wigington replied to Linda Wigington's discussion Weigh in - Honorable Mention? 2nd Base? Half-Way There? 50% Better? On the Path? in the group 1000 Home Challenge
"Nickie -  Good points. I think it is easy enough to flag or designate projects that achieve…"
Friday

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