Bosch Thermotechnology Tankless Water Heaters

The German company is making its North American debut with a new line of high-efficiency condensing and non-condensing gas tankless water heaters. Products deliver a minimum activation flow rate of 0.5 gallons per minute and use a concentric venting termination kit that allows fewer roof and wall penetrations. Cost: $496 to $2,749.Bosch Thermotechnology. 603-552-1100.www.bosch-climate.us.