[title]
[message]Broadened Horizons
$8,938.50 USD Sold out
Solar-powered air-conditioning or heating on a Yacht without a generator or inverter! In the past, comfort required staying tethered to shore power on the dock in a marina. But you purchased the boat to explore and enjoy peaceful, even exotic, remote anchorages. Then you discovered that meant running a large, noisy, diesel-hungry expensive, high-maintenance generator 24/7 while cruising and at anchor, completely polluting the sounds of peaceful anchorage.
Imagine navigating by day in a comfortably air-conditioned/heated helm while recharging batteries and desalinating enough water for the evening. (See our 48v DC Direct Water-Maker.) After dropping anchor for the evening, you redirect that energy to cool down the salon and galley to a perfect temperature while preparing dinner, and enjoying cocktails with a movie without the background drum of a generator running. After the movie, you open the salon doors to let the evening air swirl through the salon while retiring to your quiet bug-free air-conditioned cabin for a restful night's sleep.
A marine water chiller functions like an open-loop geothermal heat exchanger. Read Why is DC-Direct better?
What are Inlet water temperature limits for Cooling and Heating?
When Cooling, inlet water temperature must be >68℉ (20°C). When heating, inlet water temp must be above freezing or >34℉ (2°C). The minimum storage temperature for the closed loop circulation between air handlers and chiller is based on glycol/water mix used.
How to Heat when temperatures drop below freezing?
For heating below freezing, the exterior raw water circulation pump is left off. Instead a water heater (electric, diesel, LPG, or natural gas boiler) is used in the interior distribution loop.
With this system, can I use waste heat off the engines or generator to heat the boat?
YES, you can use waste heat off your main propulsion or generator engines by adding a passive heat exchanger between the engine coolant and the interior distribution loop. With some creative plumbing (bypass valves), a portion of the propulsion engine coolant could be passed through the raw water intake of the chiller (unsupported, could void warranty).
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