Daisy
Last Updated: Feb 8, 2026
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| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| NYDIRECT | 9.79 | ❌ | ❌ | ❌ |
Endless hot water
Can be vented with Schedule 40 PVC Pipe and Fitting
High Efficiency
Low Nox
Remote thermostat & 6' power cord included
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| NYDIRECT | 9.79 | ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| NYDIRECT | 9.79 | ❌ | ❌ | ❌ |
Endless hot water
Ideal for outdoor applications
High Efficiency
Low Nox
UEF: 0.81
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| NYDIRECT | 9.79 | ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| NYDIRECT | 9.79 | ❌ | ❌ | ❌ |
Endless hot water
Can be vented with Schedule 40 PVC Pipe and Fitting
High Efficiency
Low Nox
Remote thermostat & 6' power cord included
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Plumbing Essentials | 7.08 | ❌ | ❌ | ❌ |
199,000 BTU
.05 GPM activation flow rate
Self-diagnostic onboard computer system
84% thermal efficiency
For outdoor installation only. No venting required
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Home Essentials ✅ | 9.69 | ❌ | ❌ | ❌ |
380,000 BTU
.07 GPM activation flow rate
4" category III stainless steel venting required
80% thermal efficiency
HRS35 copper heat exchanger casing with special protective coating
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Buildcom | 9.74 | ❌ | ❌ | ❌ |
Package Dimensions: 25.4 L x 63.5H x42.545W(centimeters)
Package Weight : 22.226 kilograms
Country of Origin: China
Product Type: Plumbing Fixture
Direct Ignition No Standby Pilot Light. Thermal Fuse Automatic Overheat Protection System
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| PlumberStock | 9.67 | ❌ | ❌ | ❌ |
Top mount water connections for easy tank replacement
Versatile applications as it can be installed direct vent (DV), single vent (sv), 2 inch flex vent (fsv) or outdoor (OD)
Min gas input: 18K BTU, max gas input: 199.9K BTU
Energy factor: 0.97
Max flow rate: 11.1 gpm
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| NYDIRECT | 9.79 | ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Renovation Warehouse | 7.95 | ❌ | ❌ | ❌ |
Condensing technology - The most advanced Noritz unit, over 93 percent efficiency level!
Combi-system set-up - Open loop system functionality for both potable water heating and space heating combination system
Safety lock out - Default max. 120 degrees F (refer to owner's manual for higher temp)
Dual flame burner - Noritz exclusive! Minimizes temperature fluctuations
Fully modulating - Automatically adjusts burner level accordingly
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Forma Trade | 5.10 | ❌ | ❌ | ❌ |
Super efficient tankless condensing heater
199,900 BTU, .05 GPM activation flow rate
Self-diagnostic onboard computer system
Dramatic reduction of carbon dioxide increases heater's efficiency level to 93%
Fusion of stainless steel and copper heat exchangers
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Buildcom | 9.74 | ❌ | ❌ | ❌ |
Flow rates up to 11.1 GPM
Commercial grade heat exchanger, 25% thicker copper than competitive models
No Venting Required
Link two units with QC-2, Quick Connect Cord
Remote thermostat & 6' power cord included
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Buildcom | 9.74 | ❌ | ❌ | ❌ |
Flow rates up to 13.2 GPM
Commercial grade heat exchangers
Wi Fi Capable
Link two units with QC-2, Quick Connect Cord
Link up to 24 units with appropriate system controller
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Plumber's Paradise | 9.79 | ❌ | ❌ | ❌ |
Top mount water connections for easy tank replacement
Versatile applications as it can be installed direct vent (DV), single vent (sv), 2 inch flex vent (fsv) or outdoor (OD)
Min gas input: 18K BTU, max gas input: 180K BTU
Energy factor: 0.97
Max flow rate: 9.8 gpm
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Inman Industries LLC | 4.55 | ❌ | ❌ | ❌ |
Industry leading 25 year heat exchanger warranty
Direct replacement for existing 75 gal tank water heater
Top Mount Water Connections for Easy Tank Replacement
Versatile applications as it can be installed Direct Vent (DV), Single Vent (SV), 2" Flex Vent (FSV) or Outdoor (OD)
High Efficiency
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| VoyageSupply | 9.75 | ❌ | ❌ | ❌ |
'EZTR40' - Easy To Replace 40
Can be installed in the same time it takes to install a tank type water heater
Flow rates from 0.5 gpm up to 6.6 gpm
N-FlexKit (included) is designed for installation inside of existing water heater venting
0.91 energy factor; Gas consumption: 15,000 BTUh to 120,000 BTUh
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Noritz | 18 |
We've carried out a comprehensive analysis of 295 reviews on heaters, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select heaters priced around $2,370.15, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 18 heaters for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .
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