In Coconut Grove the street name tells you more about where the heater sits than the building's age does. A cottage off Main Highway and a block of flats on Bayshore Drive can be five minutes apart and completely different jobs.
Cottages, alcoves and the tree canopy
The Grove keeps the shape of an old village rather than a grid. Grand Avenue, Main Highway and Commodore Plaza take the foot traffic, and the quiet streets behind them run from century-old cottages with coral rock walls down to the water at Dinner Key. Those older houses were built long before anyone planned a mechanical closet. The heater usually ends up in a cupboard opening off a rear service porch, or in an outdoor alcove beside the kitchen that is ventilated to the garden because a gas unit needs air.
That alcove is also where leaves collect. A flue terminal tucked under an eave and a few feet of overhanging oak is one of the commonest reasons a burner cuts out or a unit trips on a windy day, and it is easy to miss if the front of the appliance looks tidy. Newer buildings closer to the marina put the unit in an interior cupboard, often beside the air handler.
Scale, shutoffs and old pipework
County water reaches the Grove the same way it reaches the rest of Miami: drawn from the Biscayne Aquifer and lime-softened at the treatment plants. It still leaves scale on elements and tank floors. In a cottage that has been through two or three rounds of partial repiping, that scale meets older fittings and a shutoff that may not close properly any more. Work here usually starts by finding a valve that will actually isolate the tank, because a seized angle stop turns a simple element change into a much longer afternoon.
The electrical side deserves the same caution. A house from the 1940s may have had its heater circuit added later, run in surface conduit along the carport and shared with an outdoor socket. That gets checked before anything is energised. City of Miami issues the permits for the Grove, and a replacement generally needs one.
If the water has gone cold, rusty or noisy, the contact page is the place to start. Say which street you are on and whether the unit is in a cupboard, an alcove or a garage, and the visit can be planned around what the property really has.