Learn about different types of solar hot water heaters including conventional electric and gas/propane, tankless or on-demand, and solar water heaters. http://wintersunllc.com

1. Water Heating Water Heating Exploring Energy Efficiency Options James Pader Winter Sun Construction www.wintersunllc.com

2. Hot Water Usage: National Averages Source: ACEEE

3. 14% of $2200 is $308 Energy Prices Will Increase Source: http://www.energystar.gov/index.cfm?c=products.pr_pie

4. Water Heating Water Heating Types of Water Heaters On-demand systems heat water for use when needed. Storage systems store heated water in a pressurized tank.

6. Water is heated when needed

7. Electricity, natural gas, propane

8. No standby loss from tank

9. Can save energy if hot water usage is low

10. Electric tankless should be used only for remote or seldom-used locations

13. May use more hot water: endless showers

15. Electricity, natural gas, propane, heating oil, solar, geothermal

16. Consume energy at a low rate

17. Operate at low flow ratesTo take advantage of renewable energy, storage is required.

19. Much more efficient than conventional tank

20. Low operating costs

21. Available as add-on for existing tank

22. Technology available since 1970s

24. Produces small amount of cool air

25. Fastest payback if can’t take tax credit

27. Slow recovery time

28. Slightly noisy: locate in utility room

29. Reverts to conventional if demand is high

31. Desuperheaters heat water as part of the air conditioning process and are most efficient during the summer

32. Some units can generate all of a home’s hot water and are 3-4 times as efficient as conventional tank systems

34. Payback for desuperheater as part of geothermal package is fast

37. Much more efficient than conventional tank

38. Low operating costs

39. Available as add-on for existing tank

40. Stores heat from the sun in a tank

42. Fastest payback if can take tax credit

44. Slow recovery time

45. Can be difficult to integrate in existing home

46. Reverts to electric if demand exceeds supply

48. Gas and propane have half CO2 emitted as electric but no operating savings

49. Tankless and heat pump have similar emissions with heat pump least expensive to operate

50. Simple payback on heat pump is 5-8 years; with tax credits, 3-5 years

51. Solar hot water has the lowest CO2 emissions and the lowest operating cost

52. With tax credits, payback on solar hot water is as little as 4 yearsSource: VandeMusser Design

54. Dollar-for-dollar against money owed

55. Must have tax burden

56. Available for tankless, heat pump, geothermal, solar

58. Vacuum tubes are cylindrical to track the path of the sun

61. Small inefficiencies will melt snow in winter

63. Must dump heat from overheated fluid

64. Not as efficient as vacuum tube

66. Vacuum seal and cylindrical shape increase efficiency

68. Must dump heat from overheated fluid

70. Lowest installed cost of available systems

71. Tax credits available

74. Solar hot water can pay for itself in as little as 4 years Reduce energy bills with a solar hot water system

75. Special thanks to Matt Vande of VandeMusser Design

76. James Pader 828-342-0873 www.wintersunllc.com