Madimack vs AquaCal: Which Pool Heat Pump Is Right for You?

We carry both Madimack and AquaCal at Nonstop Swim, and we get this question constantly. These are two genuinely excellent pool heat pump brands, and the honest answer isn't "one is better": it's "they're better at different things for different buyers." Here's how they actually stack up, from a dealer who sells both.

Both brands are premium pool heat pumps: the differences are in the details.

Head-to-Head: The Key Differences

Efficiency and Technology

Madimack: Full Inverter Across All Models

Every Madimack unit... InverECO, InverTITAN, and InverELITE: uses full inverter technology via their proprietary InverMAC system. The InverELITE achieves a peak COP of 15.0, and even the entry-level InverECO reaches COP 11.6. These are among the highest efficiency numbers available in residential pool heat pumps in the US market right now.

AquaCal: Proven Technology, Inverter on Select Models

AquaCal's flagship SuperQuiet series (SQ140R, SQ160R, SQ200R) delivers excellent performance with a COP of around 6.1–7.1. Their newer T-series models push efficiency higher. AquaCal's ThermoLink titanium heat exchanger is patented technology that has been refined over decades: it's genuinely excellent at heat transfer and corrosion resistance.

Warranty: A Genuinely Important Difference

Madimack InverELITE Warranty

The 25-year heat exchanger warranty on the InverELITE is the longest in the residential pool heat pump market. The compressor is covered for 10 years, and all parts for 4 years. For a unit that costs $3,500–$5,000+, this warranty coverage significantly reduces long-term ownership risk.

AquaCal SuperQuiet Warranty

AquaCal covers their ThermoLink titanium heat exchanger tubing for life, the compressor for 7 years, and offers 2 years on parts and labor (extended in certain states). AquaCal's warranty is backed by a mature US network: meaning if you need service, getting it is generally straightforward.

AquaCal's SuperQuiet series has been a US market staple for decades.

Price: What to Expect

Madimack Pricing

The InverECO starts around $2,000–$3,200 depending on BTU. The InverTITAN runs $4,800–$7,600. The InverELITE sits in a similar range to InverTITAN, positioned as the premium option. All models include heating and cooling, which means you're getting a dual-function unit at every price point.

AquaCal Pricing

The AquaCal SQ140R starts around $3,500, the SQ160R around $4,000, and the SQ200R around $4,500+. Heat-and-cool models carry a premium. AquaCal's pricing reflects decades of brand trust and US service infrastructure.

Noise: Both Are Quiet, Madimack Edges It

AquaCal's SuperQuiet name is earned: the SQ series runs around the noise level of a refrigerator hum, which is genuinely unobtrusive. Madimack's InverELITE at 30.8 dB(A) at 10 feet is measurably quieter still. For most pool owners this won't be a deciding factor, but if noise is a primary concern (close neighbors, pool near a bedroom window), Madimack's InverELITE has a real edge.

Who Should Buy Which?

The Bottom Line From a Dealer Who Sells Both

If you handed us $5,000 and asked which one we'd put at our own house, we'd lean Madimack InverELITE for the efficiency and that 25-year exchanger warranty. But if you told us you'd want a local tech to service it and you're in a major metro with AquaCal service providers nearby, we'd tell you AquaCal is a completely sound choice with decades of proven reliability behind it.

You genuinely can't go wrong with either. The main thing is to match the choice to your priorities rather than just going by brand recognition alone.