Dennis Heidner
  • Kirkland, WA
  • United States
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Dennis Heidner replied to George Kopf's discussion Utility death spiral = higher taxes? Perhaps...
"Agreed,  that is in part why benchmarking of commercial buildings including apartments, multi-family residential buildings has been adopted in many of the larger cities... and over the next 20 - 30 years it may be pushed down to smaller…"
Jan 19
Dennis Heidner replied to Bob Blanchette's discussion Have Gas Meter fees/deliver charges got out of hand?
"I routinely measured the flue temps of my old furnace multiple times over the years before it was replaced.  It was a Payne Plus 90,  the flue temps never were above 100F,  they were down in the 80-90's... and it was perhaps 92%…"
Jan 19
Dennis Heidner replied to Elvin Frost's discussion Solar objection and response sharing
"Solar panels can be insured just against hail damage, just like the roof.   Most panels can handle hail better than 20 year old roofs.  The panels from Silicon Energy - might be able to handle a large 2+ or 3+ inch hail stone.   The…"
Jan 19
Dennis Heidner replied to Bob Blanchette's discussion Have Gas Meter fees/deliver charges got out of hand?
"The big gas lines are pretty high pressure and serve a lot of different industries.  The cost of moving the gas through the high pressure lines is actually pretty low... and it is generally a different company than your local gas company.…"
Jan 18
Dennis Heidner replied to Bob Blanchette's discussion Have Gas Meter fees/deliver charges got out of hand?
"The point of a condensing furnace is to EXTRACT as much heat as you can from the fuel.   The flue temperatures at the inducer stays below about 80F.  The failure modes for the condensing furnaces, are part wear out of the motors (fan and…"
Jan 18
Dennis Heidner replied to Elvin Frost's discussion Solar objection and response sharing
"Remember that previously in NJ, the alternatives for electrical production was often coal,  or oil fired generators.   NG in significant quantity really has been a new addition in the last five+ years.  The policy in NJ would have…"
Jan 18
Dennis Heidner replied to George Kopf's discussion Utility death spiral = higher taxes? Perhaps...
"Baseboard/resistance heat homes can be upgraded.  Minisplits, in ten years will pretty much drive the pure resistance heaters out of the retrofit and new construction markets. In twenty-five years perhaps 50% of those existing Oklahoma homes…"
Jan 18
Dennis Heidner replied to Bob Blanchette's discussion Have Gas Meter fees/deliver charges got out of hand?
"Our delivery fee in the Seattle area is effectively $4.06/Dth,  the basic service charge is $10.29,  the fuel cost is $5.90/Dth.   Utilities generally sign longer term contracts for the natural gas supplies,  the supply line…"
Jan 18
Dennis Heidner replied to Bob Blanchette's discussion Have Gas Meter fees/deliver charges got out of hand?
"SInce you have other gas appliances in the house,  multiple CO detectors is a good idea and a must.  Gas fired furnaces pretty much keep their original efficiency (it can vary a little) through most of their lives.  So long as they…"
Jan 18
Dennis Heidner replied to Elvin Frost's discussion Solar objection and response sharing
"Prior to 2009,  there had been quite a bit of work (research) done on building integrated PV (BIPV).  Not the square modules,  but laminates for metal roofs,  PV modules that looked like shingles, PV that had the shape of fired…"
Jan 17
Dennis Heidner replied to George Kopf's discussion Utility death spiral = higher taxes? Perhaps...
"Industry transformation happen frequently, we tend to forget that will  society moves on.   Since you asked the question "What am I missing?" , let me offer some examples of where society moved on. 1.  Prior to…"
Jan 17
Dennis Heidner replied to Bob Blanchette's discussion Have Gas Meter fees/deliver charges got out of hand?
"I'd check with your state's utility commission.  If the utility is investor owned,  nearly of the utilities will have provided rate/tariff information and will have requested approval for the delivery fee. Keystone is not the…"
Jan 17
Dennis Heidner replied to Damien Greenfield's discussion Is there is cost saving for you in having a tankless water heater?
"The discussion started early November 2014,  cost of install has been mentioned multiple times. In most states  CO detectors are now required.  Tankless heaters do not vent into the living space.  In warmer climates (California…"
Jan 8
Dennis Heidner replied to Damien Greenfield's discussion Is there is cost saving for you in having a tankless water heater?
"Bob, should I post pictures of the yellowing of the CFL base fixtures caused by heat?   You can't use a CFL as a heating element in a childs oven (as done years ago),  but the bases still get quite hot. Or should I post thermal camera…"
Jan 8
Dennis Heidner replied to Bud Poll's discussion Basing air exchange on house volume??
"When we breath,  we exhale VOC's... sorry.   The process of cooking,  even if electric and using extra virgin olive oil, will result in VOC's.   It isn't just "VOC's"  but the type,  the…"
Jan 8
Dennis Heidner replied to Damien Greenfield's discussion Is there is cost saving for you in having a tankless water heater?
"In 2009  (Seattle area) when I looked at and added solar hot water to my house,  I calculated the payback vs a tankless... and the solar hot water heater would take about 40 years.  If the alternative is heating with electric…"
Jan 5

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Rextorgroup
Professional Interests
Energy efficiency, building envelop, renewables, building modeling

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At 12:25pm on March 21, 2013, Diane Chojnowski said…

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