WATER HEATING FREEZE PROOFED UNITS CONSISTING

Brand	Owner	Address	Description
RETRO-LINE	HEAT-LINE CORPORATION	1095 Green Lake Road Algonquin Highlands K0M1J1 Canada	water heating freeze-proofed units consisting primarily of a temperature limiting or regulating heater inside a polyethylene water pipe for installation in existing water supply lines;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A heat pump type hot water supplying apparatus includes a hot water reservoir tank (3) and a circulating path (12) for connecting a water intake port (10) formed at the bottom of the hot water reservoir tank (3) and a hot water inlet (11) formed at the upper portion of the hot water reservoir tank (3) to each other. A water circulating pump (13) and a heat exchanging path (14) are disposed on the circulating path (12). A boiling operation is performed for heating the heat exchanging path (14) by a heat pump type heating source, boiling water which has not been heated yet from the water intake port (10) and returning the heated water to the hot water inlet (11). A bypassing path (17) branched from the hot water inlet (11) and connected to the bottom of the hot water reservoir tank (3) is disposed on the circulating path (12). A freeze-proof operation by circulation is performed such that the water circulating pump (13) is driven and the water reserved in the hot water reservoir tank (3) is returned to the hot water reservoir tank (3) via the bypassing path (17).