In Part 1, we covered information concerning energy audits, duct sealing and insulation. In Part 2, we will discuss storm windows, the Bosch AquaStar tankless water heater, and compact fluorescent light bulbs. The cost guidelines listed come from the National Trust for Historic Preservation. The costs are the averages for energy saving features for old or new homes that are 2,500 square feet in size.
Costs: $2,500 - $4,750
Annual Savings: up to $690
Payback: 4 – 7 years
The cost was calculated for a home with 25 windows at a price of $100 - $200 per window.
You will want to have an evaluation done to decide whether you need exterior or interior storm windows.
Bosch AquaStar 7.2 gpm tankless water heater
Annual Savings: $175
Payback: 8.5 years
This cost was calculated based on a family of 4. The AquaStar can supply 2 or 3 major applications at once. For example, the shower, dishwasher and kitchen sink.
If you have a standard water heater you can purchase a water heater jacket and still save money.
Compact Fluorescent Light Bulbs
Annual Savings: $200
Payback: 8 months
The cost is based on 40 bulbs illuminated for 3 hours every day. This is the average U.S. residential number and usage. The CFL lifetime is calculated at 6,000 hours.
Please remember that the costs will vary depending on the size of your home, its location, contractors hired as well as any extra charges.