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Who Makes Harbor Freight's Vacuum Pumps & How Much Do They Cost?
For hand-powered vacuum pumps, Harbor Freight has two, manufactured by Mityvac and Maddox. There is also a standalone Pittsburgh Automotive air vacuum pump, but you'll need to attach it to a ...
CNET25d
This Air-to-Water Heat Pump Can Pull Double Duty to Warm Your House and Your Water
CES 2025: Samsung is preparing to bring an air-to-water heat pump to ... radiators and replace a fossil fuel-powered boiler. Samsung expects the heat pump to be available in North America around ...