Heat recovery ventilation, Scandinavan design

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Specification For FAHRenergy Ultra+ And Ultra 
Heat Recovery Ventilator (Patented)

FAHRenergy Ultra Heat Recovery Ventilators units deliver 
heat recovered fresh air for houses and industries. Light weight, 
very low power and 12vDC allows its use almost anywhere.

Description FAHRenergy Ultra HRV 1)
Max air volume per hour 200 m3/h (115cfm)

Actual efficiency, installed and COP

To 80% and COP~17

Energy exchange method

Counter Flow

Noise level 


Duct area

123 cm2

Duct diameter, round

125 mm

Size: L * W * H 555 * 250 * 160 mm
610 * 385 * 160 mm

Recovered energy per year 2)

7500kwh / 8800 kwh

Recovered energy repays the unit in 3)

Less than 1 year

Weight (without PSU)

2.7kg / 6kg

Material, certified

Fire retarding plast

Unit, fan and exchanger may be rinsed


Mouse entry prevention grid


Working air temperature range

-20° C to 45° C

Fresh Air In and Old Air Out pressure

70pascal / 7mmH2O

Expected fan life time

Over 5 years

100 to 240 Vac, 50/60Hz and 12Vdc


ECM fans are equivalent to


In houses and industry


Mixing of stale and fresh air in the unit

Less than 1%

Simple installation intended for DIY


Reconditioning/repair available


Condensation collection, std position


Standard attach / detach bracket


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FAHRenergy Warranty

1: FAHRenergy Ultra HRV is intended for very efficient radon reduction, fresh air for large rooms to 160m3 (generally 160m2 of floor area) and light to general industrial purposes such as welding.

2: Average in/out temperature difference UK / south Sweden of 18° C / 21° C for winter (100days) and 9° C / 11° C for spring/autumn (200days).

3: Correct installation and 29% electricity price increase per year is assumed. Average energy price increased 30% every year from 2001 to 2009.

EU Regulations

The EU regulations (Energy Declaration) states that a dwelling must at least have an air exchange of 0.3litres per second per m2 living area (equivalent to every two hours). This is necessary to improve the general health of the occupier and prevent rot and mould and reduce radon and other poisonous gasses in the house. By achieving this with an HRV (Heat Recovery Ventilator) thousands of pounds are saved.

For Large Rooms And Industry

FAHRenergy Ultra is very powerful for its size and very efficient.

Due to the 64dBA noise created by moving two times 200 cubic metre of air it is best suited for larger rooms 

and light industrial purposes.

The Ultra series is intended for

By recovering the energy and providing fresh air, FAHRenergy Ultra also improves the immediate environment and health of people.

FAHRenergy Ultra HRV with atatchment brackets

FAHRenergy Ultra Plus HRV

FAHRenergy Ultra Plus HRV

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FAHRenergy Ultra HRV