Joseph Lamy's Blog (4)

After 70 years on the fence, knotty LED light fixtures hide the Ductless in splendor

After the first week, the ductless heat pump and I became so close that could never even think of her as ugly. But some folks don't like the look.

In an analogy to current medical practice, the mini-split heat pump is fabulous but the side effects are minimal for some people. In those cases, we have a cure for the side effect, the LED sandwich light that mesmerizes the eyes softly and makes heat ugly pumps disappear right before your very eyes.…

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Added by Joseph Lamy on August 19, 2014 at 7:09pm — No Comments

Solar and wind have a new best friend - Liquid Metal Batteries

As reliable energy sources, solar and wind once had a couple of similar problems – darkness all night and the proverbial calm before the storm, respectively. On the bright side, though, when these natural forces become our power sources, then the heat and the light are free -…
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Added by Joseph Lamy on February 3, 2014 at 10:00pm — 1 Comment

Fresh fallen leaves stuck on furnace filter

What does it mean if the furnace filter collects lots of lint just like what the dryer makes???...Perhaps the dryer is venting inside and the filter is askew and leaks in the return air or filter gap are pulling it into the furnace. Check 'em.

What does it mean if the filter has three-dozen oak leaves pressed onto it?? Today I found an unusually high bill and a handful of foliage fallen from the neighboring trees. In the attic I found a donut of leaves under the vent where the screen…

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Added by Joseph Lamy on February 3, 2012 at 8:56pm — 1 Comment

Waxing Nostalgic

The candle has been around the cave and the realm of weatherization and energy efficiency for some time now, but here’s an app which few have ever conceptualized.

 

In the early days of weatherization, before the thermagraph, even before the blower door, the trusty candle provided us several enlightening concepts. It would flicker when breezes brushed against its flame as a clear indicator of infiltration. Before the fancy schmancy digital manometers, a few old timers would…

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Added by Joseph Lamy on July 21, 2011 at 2:20pm — 1 Comment

Latest Activity

David Butler replied to Don Fugler's discussion joining ducts in the group HVAC
"Static pressure drop through a straight length of pipe is a function of friction rate, and friction…"
4 hours ago
Sean Wiens replied to Don Fugler's discussion joining ducts in the group HVAC
"Apparently the air passing over the PVC creates a strong static field that in turn impedes air flow."
4 hours ago
David Butler replied to Don Fugler's discussion joining ducts in the group HVAC
"Why would you think PVC has high resistance?"
4 hours ago
Sean Wiens replied to Don Fugler's discussion joining ducts in the group HVAC
"Thanks David - I was going to look at PVC for the HRV but was cautioned against it, not because of…"
4 hours ago
David Butler replied to Don Fugler's discussion joining ducts in the group HVAC
"Great post, Sean. I agree that screws are wise when joining metal ducts, but its also true that…"
5 hours ago
David Butler posted a discussion

Welcome Home Performance Forum Members (formerly RESNET BPI - Energy Audit and Home Performance)

Last month the Home Performance Forum merged with Home Energy Pros, now under the Home Performance…See More
6 hours ago
Sean Wiens replied to Don Fugler's discussion joining ducts in the group HVAC
"Various studies have indicated very little air flow along surface of duct (for ventilation - have…"
7 hours ago
Dara Bowser replied to Don Fugler's discussion joining ducts in the group HVAC
"Hi Don. We have never considered screws as impeding airflow, but I can see how in some ducts (e.g.…"
7 hours ago

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