By PDJIMCO my-paydayjim.co.uk

Fröling FHG
High Efficiency Wood Boiler with
Advanced Lambda Gasification Technology

Very efficient and easy to use.
Over 80% efficiency.
Safe and clean burning with virtual no creosote or visible smoke.
Large loading door allows free access to firebox.
Easy to clean. External heat exchange cleaning lever dramatically reduces the need for brushing ash.
Lambdatronic control system continuously monitors and adjusts combustion through the entire burn process.
Unique in industry; fast ignition access door.
Built-in smoke hood practically eliminates smoke roll-out.
Automatic safety switch reduces operating steps. Load, Light, and Walk Away!.
Generous firebox size.
Built-in thermal storage controls and monitoring.

Scroll down for additional specifications

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Overview

The Fröling FHG uses down draft gasification technology to achieve over 80% efficiency. Equipped with a draft induction fan, the boiler starts with ease, even when the flue is cold. The fan and integrated Lambda control continuously adjust combustion parameters so that maximum efficiency and clean burn are maintained throughout the entire burn cycle.

After the fuel load has been burned through, the primary and secondary air dampers are closed and the fan is switched off. This allows for live embers to stay in the firebox for extended periods which reduces the need to re-light the fire after each burn period.

A menu-driven, user interface can be utilized to obtain information about boiler start up, exhaust gas and boiler temps, residual oxygen content, outdoor temperature and more.

The Fröling FHG boiler is covered by a 20-year limited warranty.

Specifications

Description	Unit	20	30	40	50
Rated Heat Output	Btu/Hr	70,000	102,500	136,560	170,700
Heating Efficiency Range	Btu/Hr	35,000 - 70,000	51,250 - 102,500	68,280 - 136,560	85,350 - 170,700
Electrical Connection	V/Hz	240/60	240/60	240/60	240/60
ElectricalConsumption	W	120	180	180	180
Output Temperature Range	ºF	158-194	158-194	158-194	158-194
Boiler Weight	Pounds	1150	1150	1345	1345
Fuel Loading Chamber Door	inches	13 x 14.50	13 x 14.50	13 x 14.50	13 x 14.50
Fuel Loading Chamber Capacity	Cu Ft	5	5	7.4	7.4
Wood Length	inches	21	21	21	21
Water Contents	Gallons	32	32	50	50
Upstream Resistance	Psi	0.042	0.094	0.157	0.245
Minimum Return Feed Temperature	ºF	131	131	131	131
Minimum Operating Temperature	ºF	203	203	203	203
Maximum Operating Pressure	Psi	43.5	43.5	43.5	43.5
Permitted Fuel		Firewood	Firewood/ Course wood waste	Firewood/ Course wood waste	Firewood/ Course wood waste
Boiler test Pressure	Psi	65	65	65	65
Flue Gas Temperature Rated Load Partial Load	F	303 203	329 212	311 214	253 223
Minimum Draft Required Rated Load Partial Load	Inch WC	-0.060 -0.028	-0.060 -0.040	-0.072 -0.040	-0.072 -0.040

Documentation