Lymm heat pump case study
Vaillant aroTHERM plus 3.5kW installation with underground pipework.
This Lymm homeowner wanted a heat pump route that could work alongside their solar panels and battery storage, heating the home and hot water without replacing parts that did not need changing.
The brief
Use the existing setup where it made sense.
The customer wanted to make better use of their solar panels and battery storage by moving the home and hot water over to a heat pump system. After the survey, the existing hot water cylinder was found to be suitable to keep, so the job could be designed around reusing it rather than replacing it unnecessarily.
The challenge
The heat pump could not sit against the house.
The obvious outdoor unit positions on the walls of the home were not right for this property. A better position was found in the garden, but that meant planning a proper underground pipe route and preparing the outside area to take the unit.
The solution
Garden position, underground pipework and proper drainage.
My HeatPro installed a 3.5kW Vaillant aroTHERM plus, reused the existing unvented cylinder, ran the underground pipework, rebuilt the patio around the heat pump position and added a soakaway drain for the outdoor unit.
Why this job is a useful example.
It shows why the survey and design stage matters. The right answer was not just choosing a heat pump; it was checking what could be reused, finding a sensible outdoor unit position and planning the pipework and drainage before the installation started.
What was included
The practical details that made the design work.
Existing unvented hot water cylinder reused
Outdoor unit positioned away from the house
Underground pipework route through the garden
Patio rebuilt around the heat pump position
Soakaway drain added for the outdoor unit
Photo story
From survey decisions to finished outdoor unit.
Thinking about a heat pump?
Start with a proper look at your home.
Send over the basics first: current heating, hot water setup, postcode, timescale and any useful photos. My HeatPro can then advise whether a design consultation is the right next step.
Another home will need a different answer.
This Lymm project used a garden position and underground pipework. Other homes may suit a wall-side unit, different pipe routes or more heating system changes. The survey is what decides that.