Solar water heaters generally cost between ... more materials and parts may be needed to get the job done. The labor cost to replace gas water heater units ranges from $50 to $150 per hour.

Nexol Photovolthermic AG has developed a new hybrid solar water heater for residential use, offering 1.5 kW of heating output ...

If yours is at least 10 years old, it may be time to budget for the cost of a water heater replacement. In many cases, a water heater will suddenly fail. However, homeowners may also notice some ...

Essentially, it allows the water heater to get much hotter during times when solar energy is available, and lets it drop to lower values before running the heater on utility electricity during ...