Model HB65A /std

This will select a model for all installation space conditions.* 
Designed for best thermal returns.

Model HB65B /std

This will select a unit for all installation space conditions.*
Designed for low pressure drop / higher cold flow capacity.

Model HB65C /

This will select a model for all installation space conditions.*
Designed for thermal returns where water is scarce.

*= including in-ground, but excluding frost protection

See Product overview for more information and images,

You may also need:

Suspension Kit   

Suits most durable 'stood' installations

Flushing Jet Assembly    

Helpful for people with diminished physical ability

Pipe Reducer Kit

Suits all HB65 models
Replaces 65mm Entry Pipe with 50mm DWV, if required, should be ordered with the selected Heatback model.