Air Conditioning - marine AC pumps for houseboat thermopumps or heat pump units

When it comes to the subject of marine AC pumps or houseboat air conditioning, an AC unit is often VITAL to having a great time on a houseboat when it's scorching hot. It could be a "dual purpose" reverse-cycle unit (for heating, depending on time of year). You often need it 24 hours a day, and sometimes it will run NON-STOP for weeks or months at a time. In many areas, it makes sleeping an ABSOLUTE necessity (if you don't want to be grumpy from lack of sleep).

Benefits of Air Conditioning

1.  Often it's absolutely needed for sleeping
2.  Everyone's rested & refreshed in the AM
3.  It reduces the chance of mold & mildew
4.  It's a necessity in many hot humid areas
5.  Creates a comfortable environment for all

Cold AC Air is a real blessing.

The pain of a bad AC pump

1.  Unbearably hot & body draining humidity
2.  The grumpiness of all the family members
3.  No place to escape from the day's hot sun
4.  Having to eat outdoors with the mosquito's
5.  Waking up at night, all hot, sweaty, & tired

You don't have to suffer the pain.



Two common failure items are the thermostat & the AC pump

A critical component of the air conditioning (or reverse cycle heating) system is the seawater/freshwater circulation pump for the climate control system. It unfortunately is a common item that breaks down, and many boat owners DON'T have a spare pump onboard. A thermostat is easy to find locally, not the pump.

Marine AC pumps for houseboats Marine AC pumps for houseboats Marine AC pumps for houseboats


Your car has a spare, why doesn't your boat?

* Don't let a bad pump ruin your weekend or vacation
* Be prepared & ready for the inevitable pump failure
* Be back in operation in minutes, not waiting days
* Swap the spare AC pump, and fix/replace the other
* The pump WILL fail, we just don't know when exactly


The marine "thermopump style" Air Conditioning units on many houseboats are like the diagram below. They are commonly found in 9k, 12k, 16k, or 24k BTU unit sizes, and often have an optional extra which is "reverse-cycle" which allows the unit to handle the boats heating along with the units main cooling function.

They require lots of cooling water to operate, which is pulled from a thru-hull fitting in the boat (below the waterline). Popular AC pump (seawater pump) sizes are the 250gph (small size), 500gph (most common), or a large 1000gph capacities.

Marine AC system on houseboats
Major components of a marine AC unit


Marine AC Pumps can last anywhere from a few hours to years, depending on the pump type, and the boats operating conditions. Many can NOT be run dry which is where many of them die. Sometimes debris or a plastic bag blocks the water intake where permanent damage can occur.

Irregardless to what causes a pump failure, it is very often imperative that a spare or substitute pump can be replace or installed in minutes (rather than days), to quickly recover from the loss of comfort and enjoyment.

On a personal note, I had a spare AC pump that allowed me to help a neighbor and swap his failed seawater AC pump that broke down during the night, that would have required a few days for a new replacement to arrive.





* Product Description & Specifications


Liquid Cooled: The made in USA pump is a magnetically-driven pump with a totally enclosed motor for bilge or engine compartment installations. They have epoxy encapsulated motors through which the pumped water flows in a copper nickel tube which cools the components. The unique seal-less pump end features an orbital magnetic drive on a ceramic shaft with a ceramic thrust washer. These pumps are explosion proof and can run submerged or in the open air.

Epoxy Sealed: The made in USA pump is a magnetically driven pump, with no shaft seal. The pump is epoxy encapsulated, which allows the pump to run fully submerged in many liquids or in open air for complete moisture protection. The pump is not self-priming and requires a suction. The pump has run dry and thermal overload protection. In a "run dry situation" the pump will shut down. Simply let it cool down or hose it down to assist in the cooling. The pump will run several hours before shutting itself down without damage. After reintroducing water, you simply wait for the pump to cool on its own (or hose it down) and it will resume operating normally.

Air Cooled: The made in USA pumps are open drip-proof motors only for dry environment installations only (not for engine compartment installations). These pumps feature open air, thermally protected and moisture protected motors. The unique seal-less pump end features an orbital magnetic drive on a ceramic shaft with a ceramic thrust washer.
Marine AC pumps for houseboats
Liquid Cooled
(Cannot run dry)
Marine AC pumps for houseboats
Air Cooled
(Cannot run dry)
Marine AC pumps for houseboats
Epoxy Sealed
(Can run dry)


* Hiqh quality MADE in USA, not low quality 'generic pumps'
  PUMP STYLE
(Liq,Epoxy,Air)
PART # Water Flow
Gals/Hr
* PRICE
Liquid Cooled
(Cannot run dry)
LC250
250 gph
$326
free shipping
Liquid Cooled
(Cannot run dry)
LC500
500 gph
$374
free shipping
Liquid Cooled
(Cannot run dry)
LC1000
1000 gph
$743
free shipping
 
Epoxy Sealed
(Can run dry)
ES500
500 gph
$297
free shipping
Epoxy Sealed
(Can run dry)
ES1000
1000 gph
$491
free shipping
 
Air Cooled
(Cannot run dry)
AC500
500 gph
$261
free shipping
Air Cooled
(Cannot run dry)
AC1000
1000 gph
$386
free shipping
All pumps are 115v rating. Free shipping within the lower 48 states.



* Buy It Now

Houseboat Liquidation Center

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AC Pump Inquiry Form

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