Pool-Specific Selection
Selecting a heat exchanger for a swimming pool centers on two facts: the exhaust is hot, saturated, and corrosive, and the goal is to recover both heat and humidity while protecting the building fabric.
Core Choice
An enthalpy wheel or membrane core recovers latent load that a plain plate cannot, cutting both heating and the dehumidification needed for incoming air. Polymer or coated plates resist chloramine corrosion better than bare metal.
| Goal | Recommended |
|---|---|
| Heat and humidity | Enthalpy wheel or membrane |
| Heat only, simple | Polymer plate |
Details That Matter
Specify corrosion-resistant materials, accessible cleaning for the moist exhaust side, and drainage for condensate. Sizing must respect the high humidity ratio so the selected effectiveness holds under pool conditions, not just dry-air ratings.
Outcome
Leisure and aquatic centers recover a large fraction of heating and dehumidification energy, with payback commonly under three years. The same recovery reduces structural condensation, lowering maintenance and extending the life of the pool enclosure.
Sizing and Selection Checklist
| Goal | Recommended |
|---|---|
| Heat and humidity | Enthalpy wheel or membrane |
| Heat only, simple | Polymer plate |
| Corrosion | Polymer or coated |
| Service | Accessible exhaust side |
Common Pitfalls
Specifiers sometimes pick a plain plate and miss the latent saving that dominates pool loads. Others overlook chloramine corrosion and use bare metal. Sizing effectiveness on dry-air ratings rather than humid conditions understates real performance.
Frequently Asked Questions
Plate or wheel for a pool?
A wheel or membrane recovers moisture too, which a plate cannot, so either is preferred over a plain plate.
How is condensation handled?
The exhaust side condenses by design; it must drain, and the core must resist the corrosive, chloramine-laden air.
Summary
Pool selection turns on latent recovery and corrosion resistance, delivering large heating and dehumidification savings.
Next Steps for Pool Selection
Confirm the design humidity ratio first, because it determines whether a plain plate is enough or an enthalpy core is required.
- State the pool air temperature and relative humidity to size the core correctly.
- Select an enthalpy or membrane core where latent recovery is needed.
- Specify chloramine-resistant material and managed condensate drainage.
Getting these three right delivers the large heating and dehumidification saving pools can achieve.
Cost, Payback and Upkeep
Pool selection adds the cost of an enthalpy or membrane core and chloramine-resistant material, but that is what delivers the latent recovery a plain plate misses. The payback is the large heating and dehumidification energy in pool exhaust.
- Capital: enthalpy or membrane core in polymer or coated metal.
- Payback: commonly under three years for aquatic and leisure centers.
- Upkeep: condensate drainage and accessible exhaust-side cleaning.
Specifying for the real humidity ratio keeps the core near design recovery for years.
Key Takeaways
Pool selection turns on latent recovery and corrosion resistance: confirm the design humidity ratio, select an enthalpy or membrane core, and specify chloramine-resistant material with managed condensate. The saving is large because pool exhaust is hot and saturated.
- Confirm humidity ratio before sizing.
- Enthalpy or membrane for latent load.
- Chloramine-resistant, drain condensate.
Taken together, the right core, material, and drainage turn a pool from a constant energy and maintenance drain into a controlled, efficient space. The saving is large enough that the recovery equipment typically pays for itself within a few years of operation.