Raypak AVIA HD NiTek 404A
For salt pool owners who want the AVIA features with a tougher heat exchanger and will pay extra for it.
Amazon $4,923$4,923
4.4/5
The best rounded in-ground pool heater here for most owners: efficient, low NOx and app controlled with a longer warranty, if bought from an authorized dealer.
- 399,000 BTU/hHeating input
- 84%Efficiency
- Natural gas or propaneGas type
- 3 yearsWarranty
Check price at Amazon$4,420.27
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Three years of parts and labor coverage, the longest here, when bought from an authorized dealer
- Built in Wi-Fi lets you set and check pool temperature from a phone
- 84% efficient and low NOx, so it is legal in strict air districts
- Indoor or outdoor installation with flexible venting
Cons
- Warranty is void if the seller is not an authorized Raypak dealer
- Costs more than the Raypak Digital of similar input
- Copper heat exchanger is less tolerant of salt and low pH than the NiTek version
The Raypak AVIA family
Every Raypak AVIA model we rank, smallest first. Ratings compare each against its own size.
| Model | Heating input | Rating | Price |
|---|---|---|---|
| Raypak AVIA 264A | 264,000 BTU/h | 3.4/5 | $3,489.52 |
| Raypak AVIA HD NiTek 264A | 264,000 BTU/h | 3.2/5 | $4,004.42 |
| Raypak AVIA 404A (this one) | 399,000 BTU/h | 4.4/5 | $4,420.27 |
| Raypak AVIA HD NiTek 404A | 399,000 BTU/h | 4.3/5 | $4,923 |
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | P-R404A-EN-C / P-R404A-EP-C |
|---|---|
| Heating | |
| Gas input | 399,000 BTU/h |
| Gas type | Natural gas or propane |
| Thermal efficiency | 84% |
| Condensing | No |
| Low NOx | Yes |
| Heat exchanger | Copper |
| Max water flow | 100 GPM |
| Installation and controls | |
| Ignition | Electronic |
| Venting | Both |
| Digital controls | Yes |
| Automation or app | Yes |
| Warranty | 3 years |
Alternatives in this size
Pentair MasterTemp 400
A strong pick for in-ground pools already on Pentair automation, though online buyers get only a short warranty.
Amazon $4,079$4,079
Raypak Digital 406A
Good value for in-ground pools outside low NOx areas, provided it comes from an authorized dealer so the warranty holds.
Amazon $4,421.17$4,421.17
Compare
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