Environmental Engineering Reference
Figure 11.6 Air/water source heat pump installed outdoors and not requiring drilling (left). Deep drilling
for a water/water source heat pump (right). Photos: STIEBEL ELTRON.
conditions, except in water conservation areas. Permission is also often required to
drill the ground probes for closed brine/water systems. Normally, the drilling
company applies for the required approvals.
From the Idea of a Heat Pump to Owning One's Own System
■ Determine possible heat sources:
Ground probe - Does deep drilling require approval?
Ground collector - Can a large section of the garden be dug up?
Groundwater - Is the house located in a water conservation area?
Air - Final solution if other sources are not available.
■ Calculate heat requirement and heating capacity.
Can insulation help to reduce the heat requirement?
Can the required temperatures be reduced through underfl oor heating or large
■ Request quotations for heat pumps and, if necessary, for the drilling.
Tip: Only HFC-free heat pumps are optimal for protecting the climate.
■ If necessary, have the drilling company obtain approval for drilling.
■ Determine optimal energy tariff, and, if necessary, plan to have buffer
Tip: Only green energy is optimal for protecting the climate.
Arrange for system to be installed by a qualifi ed company.