Gas Heating & Water Heating
Energy efficiency made simple with instant in-store discounts.
Discover instant savings on select energy-saving products at your local hardware stores. Look for National Grid signage at a Home Depot or Lowe's location near you to take advantage of in-store discounts on products that help you save energy. View our location lists or use the store locator tool below to find the closest participating hardware store and start your energy-saving journey today.
Get in-store discounted prices on select equipment, including water heaters, faucet aerators, pipe insulation, and more at a Home Depot near you.
Get in-store discounted prices on select equipment, including water heaters, faucet aerators, pipe insulation, and more at a Lowe’s near you.
Use this chart to see if you should upgrade your water heater, furnace or boiler to a high-efficiency model.
| Type of Equipment | Average Effective Unit Life Span (Years) |
|---|---|
| Combination Boiler-Furnace | 20 |
| Furnace (Gas) | 22 |
| Steam Boiler (Steel Fire Tube) | 25 |
| Steam Boiler (Cast Iron or Steel Water Tube) | 30 |
| Hot Water Boiler | 35 |