HVAC

Two systems aboard: a Vevor diesel parking heater (primary heat) and a central air handler (cooling, plus possible reverse-cycle heating).

Diesel parking heater (Vevor)

• Location: under the galley sink
• Exhaust: through-hull on the starboard side, behind the galley bulkhead (above waterline — see Hull-Deck / Plumbing through-hull lists)
• Controls: bulkhead panel next to the media wall (see Interior)
• Fuel: shares the main engine diesel tanks

Operational notes & gotchas

• The glow plug doubles as the flame sensor — low bus voltage causes faults that look like ignition failure.
• Replacement glow plugs ~$10–15 on Amazon (search "Vevor parking heater glow plug").
• Water-in-exhaust recovery: after waterborne ingress to the exhaust, let the unit run 20–30 min to burn off residual water before shutdown.
• While in there for a glow plug: also replace the gasket, fuel filter, and clean the combustion chamber screen if sooty.

Central air handler / heat pump

Marinaire MSWA11K2 — 11,000 BTU reverse-cycle (cooling + heat pump heating), 110–120V / 50–60 Hz.

• Unit location: under the V-berth (forward stateroom).
• Air distribution: single outlet in the V-berth + an overhead DC fan that pushes air aft into the salon. Temperature sensor is in the salon by the mast — placed there so the controller balances the V-berth/salon temperature instead of overcooling the V-berth.
• Raw water intake: dedicated through-hull added during refit (see Plumbing through-hulls). Hose is clear all the way from the seacock so the intake run can be inspected without disassembly.
• Condensate drain: routes into the general sump pump (shared with the shower drain and the Electroscan salt-tank overflow).
• Controls: bulkhead panel next to the media wall, alongside the parking heater controls (see Interior).

Annual service

The heat pump needs a full service every year. The raw-water side is the failure-prone path:

• Clear the intake — barnacles love that big inlet; this is the #1 maintenance item.
• Flush the Groco strainer out.
• Inspect the raw-water pump — it works overtime at the dock in summer (long continuous duty cycle), so wear shows up faster than you'd expect.

Other long-term concerns

To be expanded as they surface. ❓