Air and Ground Source Heat Pumps

A presentation by Alan Westlake –

Programme Manager (RHA) and

Jeremy Pallant – Director Greensave

•1200 properties with no mains gas. Using open fires, solid fuel central heating or night storage heaters.

•Rural area – obtaining regular fuel delivery.

•Decent homes failure.

•Expensive Options – oil, LPG or electric wet systems.

•Fuel poverty (17% of residents)

The Problem

The Solution

•Air source heat pumps.

•Ground source heat pumps.

•Biomass boilers.

•Up to 400% efficient.

•With up to 50% grant funding, installation is comparable with oil fired central heating.

Ground Source Heat Pumps

•Uses geothermal and solar energy to provide heat source through pump.•Able to be retro-fitted and connected to existing systems*•Can be used with new installations.•Used in conjunction with “north wall sensors” to maximise efficiency.* After power flushing and pressurising the existing system

Air Source Heat Pumps

•Extract energy from the surrounding air.•Able to be retro-fitted and connected to existing systems*•Can be used with new installations.•Used in conjunction with “north wall sensors” to maximise efficiency.* After power flushing and pressurising the existing system

Background

•Residents currently given choice for replacement heating, un-predictable oil and LPG prices.•Pre-installation surveys collect information on current fuel costs and heating habits.•Properties inspected for installation practicalities.•Residents briefed on potential of heat pump and efficiencies.

Objectives

•To provide efficient forms of heating.•To provide low running costs to residents and assist in understanding of appliance.•To provide “comfortable” and convenient heat.•Prevention of progressive fuel poverty.•Reduction of carbon emissions (CERT)

Scope

•Ground and Air Source Heat Pumps: •High efficiency.•Compatible with standard radiator systems.•Flow temperatures of up to 65°C.•Heat and hot water.•Low maintenance.•20 year life cycle.•Integral controls set at commission stage.

Constraints

•Cost •Initial outlay can seem high.

•Funding•Available funding must be sought and used. E.g. Low Carbon buildings Programme (Phase 2)

•Site•Practicality of site.

•Resident Perspective•Residents have to be on side with technology to get the maximum from the system.

• Witch craft and black magic!• Expensive on electricity!• How can it work?• It’s not a boiler!

Perceptions

Resources

•Greensave Solutions Ltd.•Accredited Worcester Bosch ASHP & GSHP installers.•Accredited Heat King ASHP installers•30 years drilling experience.•3 installation teams.

•Apollo Group Ltd.•Environmentally aware•Extensive supply chain

Delivery of the solution

•What – Renewable forms of energy: Air & ground source heat pumps•How – installation of heat pumps.•Why – to reduce running cost, carbon emissions and to lower management costs.•Where – rurally located housing stock.•When – from October 2008•Who – Roddons, Apollo & Greensave

Benefits

To Residents To the Environment Low cost ∙Reduced Carbon Emissions No fuel delivery Constant ambient temperature

To Roddons

•No oil tanks (reduce capital outlay)•Reduction of fuel poverty•Added Green credentials•Reduced servicing and no annual CP12

To Greensave •Opportunity to provide renewable forms of energy for high profile client.

To Apollo•Support alternative technology

Thank you.

Any questions?