A second-generation hybrid solar water heating system, the ecoMax° integrates waste heat recovery, along with solar thermal, to produce free hot water for domestic and light commercial use. The controller means HVAC technicians can now tap into a second free heat source: waste heat recovery from a/c and refrigeration units.
Whose job is it to buy the tools and take care of the service vehicle? That’s a question that each contractor answers individually. There isn’t a cookie-cutter solution that works for every HVAC business. So what works for these guys?
The Luxaire® brand Acclimate™ packaged 2- to 5-ton dual-fuel heat pump features low nitrogen oxide (NOx) for reduced carbon emissions, R-410A refrigerant, standard louvered condenser coil protection, and easy power and control wiring connections for reduced installation time and costs.
Two new reports that provide detailed studies of refrigerants have recently been released. The research is evaluating how newer refrigerants — ranging from HFC and HFO f-gases to natural refrigerants such as ammonia, CO2, and HCs — stack up against the current crop of popular refrigerants.
The question arises from time to time in building industry blogs about whether or not geothermal heat pumps (GHPs) are a source of renewable energy. So where do they fit?
The new residential boiler efficiency standards just went into effect in September, with gas-fired hot water boilers now having to be a minimum of 82 percent AFUE. Many in the industry note that sales of higher efficiency boilers have been trending up, so homeowners are already expressing interest in better efficiency.
The Luxaire® brand Acclimate™ packaged 2- to 5-ton dual-fuel heat pump features low nitrogen oxide (NOx) for reduced carbon emissions, R-410A refrigerant, standard louvered condenser coil protection, and easy power and control wiring connections for reduced installation time and costs.
While seven of 10 American homes utilize forced air to heat and cool their homes, a rising portion of the industry believes radiant and hydronic heating and cooling provides a better path to prosperity. These self-proclaimed “wet heads” met in Providence, R.I., Sept. 11-12 for the inaugural Hydronics Roundtable.
Randy Novak, president-elect of SMACNA, has urged his fellow contractors to follow his example and become involved in the home performance contracting market. Novak often works with Home Star Iowa and the firm’s chief building analyst, Rob Novak — who just happens to be his brother.
The York® line of Affinity™ packaged heat pumps has been expanded with the addition of the 2-, 2.5-, 3-, 3.5-, 4-, and 5-ton dual-fuel packaged heat pumps. They achieve efficiencies up to 14 SEER, 11.8 EER, and 8 HPSF, delivering energy savings and comfort.
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