The Home Efficiency Rebate (HOMES) provides cost savings to both single family and multifamily residents, on whole-home retrofits achieving a minimum of 20% predicted energy savings. Eligible upgrades may include: insulation, air sealing, and ENERGY-STAR certified equipment such as HVAC systems and water heaters., If you’re unsure, always consider professional service. An expert plumber will know the top water heater on the market. They can recommend a product or brand that will suit your needs just fine, and are often happy to do so. For skilled, efficient water heater services in San Antonio, TX, call bluefrog Plumbing + Drain of San Antonio. We are , Eemax is America’s #1 manufacturer of energy-efficient, sustainable, innovative tankless electric water heaters, water heating boosters, and miniature tanks for residential, commercial, light industrial, and safety applications. Eemax is a member of ASPE, AIA, NESEA, and USGBC., A higher UEF means a water heater is more energy efficient and will cost less to operate compared to other water heaters in the same bin. A water heater’s UEF can only be compared with water heaters within the same bin. The higher the uniform energy factor, the more efficient the water heater., District heating systems supply energy for water heating and space heating from combined heat and power (CHP) plants such as incinerators, central heat pumps, waste heat from industries, geothermal heating, and central solar heating. Actual heating of tap water is performed in heat exchangers at the consumers' premises., .