Mick Lane replied to Ben L Menol's discussion Split air conditioner ruined by birds. Will this work after repairing?
"I would flip a coin. It is probably as likely to run for another 5 years after a repair, recharge, and cleaning as a total new one will go for 10 years. The acidic waste makes most things look pretty awful, but can't damage much. If the coils and el…"
May 14
Mick Lane replied to Dav Camras's discussion Designing airflow in large low load homes
"For cooling, we would recommend more air for that square footage. The Manual J value is good for the heat loss or cooling load of the space, but the actual distribution of the air is another issue.  This will make your heating system appear to be "o…"
Mar 30
Mick Lane replied to Sean Wiens's discussion Hydronic System Critique
"What is the output of the panels on 66 degree water? Especially with 75 degree air. When we do a chilled beam or radiant cooling, we always cheat with a blower coil or DX make up air unit. Also, my typical chilled water system is on a 45 degree supp…"
Jan 13
Mick Lane replied to Debra Little's discussion New EE single fam home financing in NY
"Look into SONYMA Rebuild N.Y. mortgage. It bumps your mortgage up to around 4% but you can borrow up to 95%. Lots of rules and stipulations. May not bean option.
Also look into NYSERDA Home Energy Program. Different structure for financing."
Jan 6
Mick Lane replied to Robin Henry's discussion Floor I joists and properly installed insulation
"This insulation may be installed correctly. There are way too many variables in play to give you the "right answer".  Yes, un-faced bats in joist cavities is not pretty, but is probably the best one size fits all answer for insulating. 
Yes un-faced…"
Dec 4, 2019
Mick Lane replied to Robin Henry's discussion Floor I joists and properly installed insulation
"Some one citing Joe Lstiburek.  Good work.  
I think most of us jump to assumption that might not be true.  The insulation does not have to fill the cavity to be effective. BUT or IF or ONLY WHEN. First of all we are talking about horizontally insta…"
Dec 3, 2019
Mick Lane replied to Ed Minch's discussion Solar performance anomaly
"If I had to guess the inverter is telling you the how much DC you are making with the PV. The inverter is probably eating those kWh converting it to AC. "
Oct 15, 2019
Mick Lane replied to Ben Stallings's discussion radon mitigation with HRV?
"Okay.  2 things. 
Number one: Radon mitigation actually exhaust from outside the building envelope.  An ERV is a VERY bad idea.  We could argue about technology and cross talk, but generally foundation radon ventilation should not be conditioned air…"
Sep 30, 2019
Mick Lane replied to Noah Ray Sanders's discussion Foam/Fiberglass Hybrid Insulation
"Short answer: spray about an inch to the roof deck and gable walls. Take specific note of any fire rated surfaces and know the foam will potentially lessen that rating.
Long answer is that you should think hard about air, ventilation and the require…"
Aug 19, 2019
Mick Lane replied to Chris Stratton's discussion Okay to use 1" polyiso as a insulation base for 50 gallon heat pump water heater?
"Technically EPS is "structural". PolyIsoCyanurate is more compressible. It also doesn't do well with shear, tension, hence the foil face. There is also a famous story about the failure of the Green Roof on the Ford Factory that substituted PolyIso f…"
Aug 19, 2019
Mick Lane replied to David Meiland's discussion Air gap above floor insulation--how big is the impact?
"There are a few things going on here. First, if you want an idea of the effectiveness of the insulation, go to surface temperature. If the bottom surface of the insulation is cool, then the insulation is effective.
Second, the air gap is a manufactu…"
Dec 17, 2018
Mick Lane replied to Tom Smith's discussion Are Energy Efficient Windows worth the investment?
"Let's talk incremental cost.  You could buy double pane windows. Standard size about $10 - 15 per SF, Custom $25 - 30. EnergyStar Standard size $25 to 30, EnergyStar Custom $35 to 40. 
Ultra Premium (Triple pane, fiberglass frame, $40 to $60 per SF.…"
Apr 12, 2018
Mick Lane replied to Steve Eberly's discussion Infrared camera recommendations for general contractor use
"The real question is what are you going to do with the camera.  Does it need to take pictures that you will used in documents? I use a Flir F7. It was about $4000.  The new ones are the E4, E5 and E6 look good. The E6 looks like a big improvement fo…"
Mar 23, 2018
Mick Lane replied to Pamela Brown's discussion Condensation on an interior wall of a detached garage.
"For condensation you need one simple condition. A surface below the dew point. There are lots of reasons, this isn't the exterior surfaces. They mostly boil down to paper surfaces and sun heating the exterior.
Increasing the ventilation will reduce…"
Mar 15, 2018
Mick Lane replied to Mark Furst's discussion Worst boiler ever?
"Nice.  Probably want to clean the orifices on the burner. That firebox is a little too full of fuel when it hits the pilot. Or check the chimney.  "
Mar 15, 2018
Mick Lane replied to Tray Biasiolli's discussion Two-stage furnace, control at furnace or thermostat?
"I was playing with a 2 stage carrier furnace last week.  The staging is not bad on the condensing boilers.  They camp out at low fire until the return air temp drops or they get past 5 minutes of run time.  I am fine with them doing it this way.  As…"
Jan 23, 2018
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