Balwyn sits at about 2410 people per square kilometre, standard detached housing with a side or rear position where a heat pump can sit with proper clearance. At about 84 metres, Balwyn is low and level, and the main design question is tank size rather than ambient temperature.
Balwyn is about 10 kilometres from the CBD. Older homes here often still run a gas storage unit in a side passage, and the passage is usually narrower than a heat pump needs. Balwyn sits inside Boroondara. Council approval is not part of this job.
Work in Balwyn slots in beside whatever we have on in Balwyn North, Canterbury or Deepdene that day. Balwyn is a suburb of about 5.6 square kilometres in Boroondara, postcode 3103, with 13495 residents recorded in the 2021 census.
Local context worth knowing: === 19th century ===
Following the Foundation of Melbourne, Balwyn was part of Henry Elgar's Special Survey of 8 square miles (21 km2) in 1841, which was subdivided into small farms and grazing runs. Suburbs that filled in before the gas network reached them often have an electric hot water history. Our working patch either side of Balwyn takes in Balwyn North, Canterbury, Deepdene and Kew, which is why availability here is usually good.
Boronia is our base, roughly 12976.6 kilometres north-west of Balwyn. Short distances like that are why we can commit to a time and keep it. One more piece of local background: The Outer Circle railway line, with a station at Deepdene, opened in 1891, was closed in 1893, re-opened in 1900 then finally closed to passenger traffic in 1927.