There’s an interesting list up over at Green Building Advisor about the most useless energy related products around. The list is pretty cool but I don’t agree with all of it. Of course I’m not an official green building advisor or anything.
Blogger and advisor Martin notes the following as a waste of money and not great energy savers to boot…
- Tyvek ThermaWrap
- Fafco plastic solar collectors
- Passive fresh air inlets
- Vinyl siding laminated to rigid foam
- Powered attic ventilators
- Programmable thermostats
- Inexpensive LED lamps
- Foil-faced bubble wrap
- Power factor correction devices
- Vent-free gas space heaters
I’m not so sure I agree with the whole programmable thermostats being useless argument. Martin notes that they’re not totally useless — “they’re just unnecessary and insufficient.” He also notes that “Study after study has shown that installing programmable thermostats makes no difference in energy use.” Mainly because homeowner behavior is far more important than the hardware. However on the flip side I’ve known people who have used them and note that they have saved money. I had one in a previous home and while I didn’t feel it saved as much money or resources as the programmable water heating thermostat I also had, it still did save money on my energy bill. It may depend on how you use the device along with your normal habits surrounding electricity use.
I also think that powered attic ventilators can work to reduce costs in a newer home. My pal installed one and his energy costs are lower than before BUT he has a newer and soundly built home. Martin notes that most aren’t as efficient because most U.S. homes have leaky ceilings so instead of helping the ventilators commonly draw conditioned indoor air into the attic through ceiling cracks which of course will increase not decrease costs. He also notes that canned foam to seal leaks in your ceiling or additional insulation for your attic floor will be more useful.
In any case, if you disagree or not it’s a good read. He makes some excellent points and it’s lame to waste money on what won’t work for your home.



















