5 to 10 gallons of hot water with restoration instances starting from 30 to 60 minutes. Burner apparatus together with a burner, is disposed in an operative relationship with the heat exchanger for heating water flowing via the heat exchanger. An digital direct spark ignition board and a Gas Regulator with an robotically managed Dual Solenoid shut-off valve are supplied for working the burner apparatus according to the necessities of the ANSI Z21.10.3 security normal. BTU ranges at completely different water circulation charges. This function is achieved using a low price metallic disc thermostat to directly activate the Dual BTU valve with out the need of an expensive microprocessor management. This can be a necessary safety feature also known as a Limit Switch. A further safety characteristic is achieved by incorporating a Relay and energy efficient heating a steel disc thermostat on the exhaust housing that cause the induced draft blower to remain working after every burn until the exhaust housing reaches a low temperature, thus eliminating thermal stress on the heat exchanger and exhaust components.

FIG. Three is a perspective view of the heater shown in FIGS. FIG. Four is one other perspective view of the heater shown in FIGS. FIG. 5 is a useful diagram of the heater proven in FIGS. 10 in accordance with the current invention includes a sealed housing 14 , fabricated from any suitable material similar to steel, which incorporates an air inlet 18 and a flue outlet 22 . 26 features a plenum 30 with encompass tubing 34 related to a chilly-water inlet 36 and a scorching water outlet 38 . As proven in FIG. 2 , the cold-water inlet 36 and hot water outlet 38 extend exterior of the sealed housing 14 . Burner apparatus 42 includes a burner forty four which is disposed in an operative relationship with the heat exchanger 26 for heating water flowing via the tubing 34 . 74 also monitors the flame of the burner forty four verifying the presence of ionization at the situation of a spark igniter 76 and promptly shuts off the gas stream by means of the twin solenoid valves fifty four .

Forty four , regulator 48 , and solenoid valves fifty four are conventional and are available from a number of domestic and foreign suppliers to be used in conventional gas appliances. BZB02A0502 with Dual BTU choice. An exhaust system 58 including a blower 60 with blower motor sixty two , blower relay sixty four , ignition relay 66 , and time delay swap sixty eight (See FIG. 5 ), is provided for inducing draft of air from the air inlet 18 by way of the heat exchanger 26 and out of the flue outlet 22 . This greatly enhances the effectivity of the burner forty four heat exchanger 26 , and as hereinbefore noted, gives the performance benefits relating to condensation supplies stressing and buy alpha heater discount alpha heater portable wind resistance. 74 with a spark igniter 76 which could also be of any accepted standard design certified by an acceptable agency (i.e. CSA, UL or other), energy efficient heating is provided for working the burner apparatus 42 and the exhaust system 58 .

80 is provided in the hot water line to provide strain relief in case of overheating in the new water line 38 in a conventional manner. 84 is disposed within the outlet hot water line 38 and a solenoid valve 86 , connected to both the anti-freeze thermostat swap eighty four and outlet scorching water line 38 , supplies for drawing water from the new water outlet line 38 upon receipt of the sign from the anti-freeze thermostatic switch which is configured for offering a signal at a preselected temperature. Such anti-freezing thermostatic switches are available from Thermo-Disc, Klixon, Cantherm and other authorized suppliers. 86 is disposed exterior the housing 14 and diverts water via a drain line 90 to the environment or to a recycle tank (not shown). Ninety to the atmosphere or to a recycle tank (not shown). 94 interconnected with the ignition board for energy efficient heating igniting the burner forty four and heating water to a chosen temperature at which the temperature freeze swap closes the solenoid valve.

98 may be disposed within the outlet hot water line 36 and is interconnected with the ignition board and the solenoid valves 54 to regulate the burner operation to a decrease of the two BTU ranges at a chosen water temperature, for example 45° C. At this temperature, the burner at a decrease BTU offered lowered water heating to maintain a fascinating output water temperature in the new water outlet 38 and faucet 102 . "flow switch" ninety four which, in flip, activates the "ignition relay" 66 that applies energy efficient heating to the system. After a profitable ignition, the system will instantly begin supplying hot water. At regular (less than 60 F) the output water temperature starts rising considerably at any time when the move is diminished to beneath 1 gal/min. This is not unusual in an RV the place the water supply may be small when "dry camping" using a storage tank. If the temperature exceeds one hundred twenty F the t-mod swap 98 opens; this causes the dual BTU valve to reduce the fuel circulation and the water temperature decreases.