Heat Recovery

Using the Vent-Axia LoWatt range can reduce electrical consumption, thus reducing the overall carbon footprint.

When using heat recovery ventilation, the heating system requirement is reduced thus potentially saving another 500kg of carbon per annum.


The Sentinel Kinetic incorporates:
A wholehouse heat recovery system with up to 92% energy

Features and Benefits

• Manufactured in the UK
• Building Regulations Part F compliant
• Recognised in SAP Appendix Q
• Energy savings trust best practice compliant
• Up to 92% heat recovery whilst controlling condensation
• Programmable Summer bypass
• Left or right hand installation
• Horizontal and/or vertical duct outlets
• Integrated digital controller for simple and accurate commissioning
• Light weight for easy installation
• External condensate connection
• Plug and play controls; Humidistat, Vent-Wise, Wireless remote
• BMS connectivity
• LS inputs. (Light switch)
• Volt-free inputs
• Self diagnosis for simplified fault finding
• Multiple switching options: Light switch, PIR, Humidistat etc
• Adjustable delay on/delay off timer
• Easy access G3 filters

An easily accessible heat recovery cube protected by
two removable EU3 filters. Two Lo-Carbon Energy Saving EC DC
fans ensure long life (typically over double the life of AC motors)
and lowest possible energy use. Fully insulated construction with
built in condensation drain. Fitted with 150mm spigots.
Specifically designed for new build homes and light commercial/multiple residential properties with a high level of insulation.
Lo-Carbon Sentinel Kinetic meets the latest requirements of the Building Regulations Document F 2010 for wholehouse system ventilation: System 4. Continuous mechanical supply and extract with heat recovery.

Product Specification

The Lo-Carbon Sentinel Kinetic Plus has 2 fully adjustable speeds and a purge setting – maximum. On the front of the unit is a digital controller that can be used to pre-set the speeds to any required air-flow within the performance range.

The Sentinel Kinetic Plus models can be mounted vertically in a roof space or on a suitable wall. When mounted in an unheated area ducting should be insulated. Ducting can be attached to the unit horizonally, vertically or both.
Left or right hand installation. The unit is supplied with duct spigots to outside on the right hand side. These can be reversed onsite by simply removing the control panel, rotating the unit 180 degrees and re-attaching the control panel.
Horizontal and vertical spigots: The combination of spigot options allows installation in confined locations. If vertical and horizontal connection is required on the same outlet/inlet, additional spigots can be supplied.
Condensate drain can be taken out through the back, bottom or front of the unit. Using the fittings supplied, the final condensate connection is made outside the unit and can be completed after installation.

Typical Specifications

Supply and install a Sentinel Kinetic Plus system Wholehouse heat recovery unit as manufactured by:

Vent-Axia Clean Air Systems
Fleming Way
West Sussex
RH10 9YX


Efficiency: The unit should retain up to 92% of the temperature differential of out going air.

Heat exchanger: should be of a multi plate counter-flow type constructed out of PETG with ultra sonic welded joints.

Motor: should be a Lowatt Energy Saving DC with ball bearings, greased for life. It shall operate up to an ambient temperature of 40°C and be fitted with an electronic thermal overload protective device.

Fan: The fan impeller should be of a backward curved centrifugal type, dynamically balanced.

Controls: The unit should contain an integral driver circuit permits connection to Switched Live, No-volt and 0v to 10v Proportional Input.

Ducting spigots: The unit should provide 150mm ø x 50mm long spigots for all duct connections with vertical and horizontal locations. (Can be converted to flat ducting).

Filter: should be synthetic material tested to minimum of EU3.

Condensation: The outlet provided should offer front, rear and bottom connections external to the unit.

Construction: The unit outer case should be constructed of white ABS. The heat exchanger access doors should give tool-free access to the filters.

Mounting: Vertical, floor or wall mounted, or within a cupboard.

Mains electrical supply: 230VAC 50Hz.

Complies to the following approvals/directives: CE, LVD, EMC. SAP Appendix Q eligible.