Narrowboat auxiliary heater and method of controlling same

• US 20040142295A1
• Filed: 01/22/2003
• Published: 07/22/2004
• Est. Priority Date: 01/22/2003
• Status: Active Grant

• Current Assignee: International Thermal Investments Ltd.
• Original Assignee: Calcutt Boats Ltd.
• Inventors: Holden, Clement James
• Granted Patent: US 6,883,467 B2
• Time in Patent Office: Days
• US Class Current: 432/227
• CPC Class Codes: B63J 2/14 of liquid-freight-carrying tanks
• CPC Class Codes: B63J 2002/125 making use of waste energy
• CPC Class Codes: F02F 3/10 having surface coverings F02F3/02 takes precedence
• CPC Class Codes: F02G 5/00 Profiting from waste heat of combustion engines, not otherwise provided for
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

A hot water system for a narrowboat which system comprises an auxiliary heater used to heat a potable water tank and further to heat living areas of the narrowboat. The auxiliary heater and a temperature measuring device operable connected to the water tank which terminates operation of the heater when the temperature reaches a predetermined and comfortable level selected by the user. Likewise, a room water circuit is operably attached to the auxiliary heater and is operated by a thermostatically controlled solenoid valve which terminates hot water flow through a radiation within the living areas when the temperature reaches a value selected by the user.

Claims

1. A hot water heating system for a narrowboat comprising a water tank containing water heated by at least two hot water circuits, and a thermostat to measure the temperature of water in said water tank and to terminate operation of one of said water circuits when the temperature of said water exceeds a predetermined value and to initiate operation of said one of said circuits when said temperature of said water is below a lower limit.

2. A hot water heating system for a narrowboat wherein a room water circuit extends from a heater water circuit and a thermostatically controlled valve initiates water circulation from said room water circuit through a radiator when said temperature of said room is below a first predetermined value and which thermostatically controlled valve terminates operation of said room water circuit when said temperature of said room is above a second predetermined value.

3. An exhaust system for an auxiliary heater used in a hot water heating system used in a narrowboat wherein fresh ambient air is provided to said burner from an inlet exposed to ambient conditions and wherein combusted air is exhausted from said burner through an outlet exposed to said ambient conditions, said inlet for said fresh ambient air being located a distance from said outlet whereby the quantity of fresh air provided to said burner through said inlet is uncontaminated by said combusted air exhausted from said outlet.