Eco-Experts Answers Your Environmental Questions
(Page 2 of 3)
January/February 2004
By Natural Home Staff
Pete Nichols replies:
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Unfortunately, this question doesn’t have a direct and simple answer. The reality is this type of heating system might make sense for you but not your neighbor. I understand your concern about the propane scent and your objection to its cost. Propane gas is actually odorless in its natural state, but when it’s used to heat homes an odorous additive is required to detect leaks.
The main factors in heating efficiency are the cost of the energy source, the type of appliance you use, how well heat is distributed throughout the house (and how well it stays there), and the cost to maintain your existing system.
Based on recent average energy prices in your area, natural gas is about 60 percent more economically efficient than propane. Most heating systems can easily and inexpensively be converted from propane to natural gas with readily available conversion that lets you replace the orifice at the gas outlet port. Contact a local HVAC professional to ensure your existing gas lines are sufficient for the conversion.
While you’re at it, check out how well your system is distributing heat and how well your home conserves it. If your ducts leak to the outside or pass through uninsulated areas (such as crawl spaces), much of the heat is being wasted. Also check whether the heat is quickly dispersing. Air leaks throughout the house (around windows, doors, plumbing chases, foundation to wall junction, etc.) are notorious energy wasters. A thorough air-sealing mission (to “tighten” your house) is usually the most cost effective way to save heating dollars. You can perform this yourself with caulk, weather stripping, and low-expansive foam, or hire a professional to do the job.
Converting to an electric heat pump is extremely efficient, but costly. If you don’t need to replace your heating system, I would wait on that and concentrate on tightening your space.
Pete Nichols has an extensive background in green building materials and technologies and is the founder and marketing manager of Sustainable Flooring, a bamboo and cork manufacturing cooperative (SustainableFlooring.com). He is also a co-author of the upcoming book Green Remodeling: Changing the World One Room at a Time.
Safe flea control
Do you know of any natural ways to get rid of fleas in the home without toxic flea bombs? How can you keep them off your pets?
—Dave Burger Pennellville, New York