Heat Pump Hot Water Systems in Grovedale

Typical Grovedale blocks in the 1970s and 80s streets are 600 to 750 square metres on 16 to 20 metre frontages, and most have a gate wide enough to run cable and carry a tank to the rear. That is worth knowing before you compare quotes, because a price for a Grovedale changeover and a price for a Geelong West cottage are pricing very different amounts of labour for identical hardware.

It also means we usually have a genuine choice of position rather than one workable spot. The old tank location is often fine, but if it sat under a bedroom window or in a corner where the discharge would blow straight at a fence, moving it two metres costs very little here. The 1990s pockets tighten toward 450 to 550 square metres and that choice narrows.

Almost nothing in Grovedale predates 1965, so the cable in the walls is generally PVC rather than rubber and there is no reason to be pulling a house apart. The common upgrade here is capacity rather than replacement. A heat pump needs its own dedicated final subcircuit with residual current protection and an isolator, and on a full 1970s board there is simply nowhere to put it.

Depending on the board that is either a straightforward addition, a partial rebuild, or a replacement. It is normally the cheaper end of the $800 to $3,500 range rather than the top of it, because the meter panel and consumer mains are usually sound. We check what is actually there and price it as its own line rather than folding an unknown into the hot water number.

The incumbent in Grovedale is usually a gas storage unit from the 1990s or a 250 to 315 litre electric tank, both installed anywhere from fifteen to thirty years ago. Both fail the same way, as a slow weep from the base onto the path before anything dramatic happens. Both are straightforward heat pump replacements.

Sizing is where the thought goes. A heat pump reheats more slowly than a gas burner, so the tank has to suit the busiest morning rather than the average one. As a guide, 170 to 220 litres suits one or two people, 250 to 280 litres suits three or four, and 300 litres or more suits five or more. Grovedale has a lot of four bedroom family houses, which puts most of them in the top two brackets.

The grid layout off the Surf Coast Highway yields plenty of north-facing planes, and concrete tile hips at around 22 degrees on the older stock take an array easily. A heat pump is the single best load to put under existing panels, because hot water is small and completely shiftable.

Against a conventional electric storage tank a heat pump uses roughly one third of the electricity for the same hot water, so the saving exists whether or not you have solar. Against gas the comparison is different: the heat pump can absorb your own generation and gas cannot use it at all, and if hot water is your last gas appliance then disconnecting removes the daily supply charge as well. We set the timer for the early afternoon at commissioning and show you how to change it.

Supplied and installed, $3,000 to $4,500 before incentives. Solar Homes contributes up to $1,000, or up to $1,400 for a locally made product, subject to a $150,000 combined household income cap from 1 July 2026. Victorian Energy Upgrades discounts the invoice directly, with no income test, on a property at least two years old with a $200 including GST minimum customer contribution. Federal STCs are worth roughly $300 to $600. Most Grovedale households pay a few hundred dollars up to about $1,500.

VEU changed on 30 September 2026, so we confirm the current discount in writing on the quote rather than repeating a figure from last season. Grovedale is about 70km from our Altona workshop, so we book work here in scheduled blocks and nominate the week rather than the hour. We do not offer same-day attendance down here and would not claim to.