Gas Heaters

Rekord's range of Modulating Gas Heaters has 8 models with max. outputs from 220,000 BTUs to 1,500,000 BTUs per hour. The 6 models up to 900,000 BTUs are based upon the very reliable and efficient commercial heaters from Thermobile and modified by Rekord to provide steplessly variable heat output controlled automatically by the most accurate and reliable humidity and temperature sensors available.

The Heaters are mounted in a purpose built adjustable frame with Transport Wheels The Control Panels, also mounted on the frame, are manufactured from Solid State Electronics with Digital Display in a robust casing The panel controls the rotary valve to give infinitely variable heat, (no stages) this gives instantaneous and accurate monitoring of relative humidity or temperature so that the air heater will immediately respond to the changes of ambient conditions Heater output is then kept to a minimum reducing gas consumption.

The unit is simple to use, purpose built in modular construction. The heater unit can be used for other purposes e.g. space heating of workshop or greenhouses etc.

The larger output heaters are both designed and manufactured by Rekord. They maintain high efficiency as they modulate across a remarkable range of heat output. Controlled either by the temperature or humidity required they are particularly suitable for large stirred grain systems and other crop drying. Where outputs greater than 1,500,000 BTUs are required double and triple piggy-back units are supplied.

All units are designed to BS. 5750 Part 1- ISO 9001 approved by BSI. or as Agricultural Process Heater type “B”. The unit is complete With Heater and Rekord Control Box suitable for humidity and temperature and one Sensor. With adjustable Stand and Transport Wheels.

ALL UNITS HAVE PROTECTION AGAINST HEATER FAN FAILURE, TWIN SAFETY SHUT-OFF VALVES AND OVERHEAT SAFETY SHUT DOWN THERMOSTAT.

Model numbers indicate approx. max. outputs in thousand BTUs with S for single & D for double units.

RSH Model No.	275S	350S	450S	550D	700D	900D	1000S	1500S
Heat Output max BTUs	275,000	350,000	450,000	550,000	700,000	900,000	1,000,000	1,500,000
Min BTUs approx	92,000	130,000	180,000	92,000	92,000	180,000	50,000	50,000
Max in Kw approx	80	100	130	160	200	255	290	440
Recommended no of Gas Cylinders	3	4	5	6	BULK SUPPLY ONLY

Ambient air is mixed with heated air to produce accurately controlled constant humidity in the main tunnel regardless of ambient relative humidity Simply by dialing in the relative humidity required and leaving the controller to do the work, the unit will remove up to 1/2% moisture in 24 hours with an air flow of 100 cu ft per min per tonne or 15 ft air per minute through the grain.

For the most economical and safe drying of non stirred grain, level out grain on top of store, obtain minimum air flow of 15 cu ft per mm through the grain .Use grain Fan without heat 24 hours per day until the wettest grain is 18% m c or less. Set the Rekord automatic controller to a relative humidity that will dry 2% lower than the actual grain moisture content. Check grain moisture daily and reduce RH setting accordingly to 2% lower than the actual until it equates to the required moisture level.

RH% of air	55	60	65	70	75	80	85	90
Wheat %mc	13	13.5	14.5	15.5	16.5	17.7	19.2	20
Barley %mc	12	13	14	15	16	17.8	19	19.5
Oats %mc	11.5	12.5	13	14	15	17	19	20
Rape %mc	7	7.5	8	9	10	12	14	16
Peas %mc	12	13	14	16	18	21	24	27
Ryegrass %mc	11	12	13	14	15	16.5	20	24
Beans %mc	12	13	14	16	18	20.5	23	26
Linseed %mc	7.8	8.5	9.4	10	11	12.5	15.1	18.2

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