| Previous Heating System: | Cast Iron Boiler |
| Previous Hot Water: | Tankless Coil in Boiler |
| Current System 2000: | EK1 |
| Current Hot Water: | 40 gallon tank |
| Annual GHG Savings: | 19956 |
| 30 year saving greenhouse gases: | 598,680 lbs CO2 |
| Previous Fuel Costs: | $7,286 |
| Current Fuel Costs: | $4,757 |
| Annual Savings: | $2,528 |
| 30 Year Savings: | $75,852 |
| Homeowner Comments: |