As an RV owner, finding the right air conditioner to keep your rig cool during hot summer days is crucial for comfort. Two of the top contenders are the Dometic Blizzard NXT and the Penguin II AC units.
Both offer strong cooling power, but have some key differences RV owners should consider.
In this comprehensive comparison, we’ll take an in-depth look at the specs, features, installation, and real world performance of the Blizzard NXT and Penguin II. By the end, RV owners should have a clear sense of which model better fits their cooling needs and budget.
Key Comparisons At-a-Glance
Here are some of the major specification and feature differences between the Blizzard NXT and Penguin II models:
| Specs & Features | Dometic Blizzard NXT | Penguin II AC |
| Cooling Capacity | 15,000 or 13,500 BTU | 13,500 BTU |
| Airflow | 820 CFM | 800 CFM |
| Noise Output | 56 dB low / 62 dB high | Not Rated, medium/high |
| Filtration | 360-degree optional | Standard foam filter |
| Controls | Digital thermostat optional | Analog dial thermostat |
| Warranty | 2 years, optional extension | 1 year |
| Weight | Approximately 100 lbs | Approximately 90 lbs |
| Cost | $1200+ | $800+ |
Dometic Blizzard NXT Overview
The Blizzard NXT is Dometic’s newest flagship RV air conditioner, built for maximum cooling and efficiency. Here are some of its standout features:
- Cooling Power: 15,000 BTU or 13,500 BTU capacities available. Can cool spaces up to 550 square feet.
- Airflow: 820 CFM on high fan setting. Moves air quickly for fast cooling.
- Noise Level: Rated at only 56 dB on low fan speed. Keeps noise to a minimum.
- Filtration: Optional 360-degree return air filter kit available. Helps remove allergens & particles.
- Control: Available with standard analog controls or upgraded digital thermostat. Gives temperature control from phone app.
- Efficiency: Uses environmentally friendly R410A refrigerant. Rigorously tested for leaks to prevent emissions.
- Weight: Approximately 100 lbs. Lighter than previous models.
- Warranty: 2 year limited warranty. Can be extended with additional plan.
The Blizzard NXT aims to offer the ultimate in contemporary RV air conditioning. Key advantages over past Dometic units include reduced noise and weight, plus app control options. It’s built to provide reliable cooling, even in the most extreme conditions.
Penguin II AC Overview
The Penguin II has long been a popular choice among RV owners for its blend of performance and affordability. Here are its notable features:
- Cooling Power: 13,500 BTU capacity. Suitable for spaces up to 450 square feet.
- Airflow: 800 CFM air flow rating on high fan setting. Moves air quickly to cool.
- Noise Level: Claims “ultra-quiet” operation. Specific decibel rating not published.
- Filtration: Uses a foam pre-filter. Higher grade filters not available.
- Control: Standard analog thermostat control. Digital thermostat not offered.
- Efficiency: Uses R410A refrigerant. No published info on leak prevention.
- Weight: Approximately 90 lbs. Comparatively lighter than past models.
- Warranty: 1 year limited warranty on parts. No optional extensions offered.
While not as feature-packed as the Blizzard NXT, the Penguin II provides proven, reliable performance. It’s lighter weight and budget price point make it appealing for RVers looking for value.
Key Differences Between Dometic Blizzard NXT And Penguin II AC
- Cooling Power
One of the most important factors for any RV AC unit is its cooling capacity. The amount of BTUs the air conditioner provides determines the size space it can effectively cool.
The Dometic Blizzard NXT is available in both 15,000 and 13,500 BTU options. The 15K BTU model can cool spaces up to 550 square feet, while the 13.5K is rated for up to 450 square feet. This makes the Blizzard a great choice for both mid-size and larger RVs.
The Penguin II offers just a 13,500 BTU capacity. This allows it to sufficiently cool spaces around 450 square feet in size. So it’s ideal for mid-sized RVs, but can’t quite keep up with the Blizzard NXT in oversized rigs.
Both the 15K Blizzard and 13.5K Penguin are serious capacities optimized for RV use. But the Blizzard NXT’s additional high-capacity 15K option gives it greater cooling muscle for big rigs.
- Air Circulation
An AC unit’s airflow rating measures how quickly it can circulate cooled air into the room. More CFM (cubic feet per minute) means faster cooling throughout your RV.
The Blizzard NXT really excels here with an impressive 820 CFM air flow rating on high fan speed. This allows it to pump out cold air rapidly, achieving stable temperatures faster than lower-airflow units.
The Penguin II is no slouch either with an 800 CFM high speed airflow rating. But the Blizzard NXT does have a slight edge in max air circulation capacity. Over time, those extra CFM can add up to faster overall cooling.
- Noise Output
One downside of many powerful RV air conditioners is noise – nobody wants a loud, disruptive AC unit. Here, the Blizzard NXT really outshines the Penguin II.
Dometic specially designed the NXT to operate much quieter than past models. On low fan speed, it produces just 56 dB of noise. That’s equivalent to the ambient noise level of a typical conversation. Even on high, it only reaches 62 dB – comparable to the hum of a refrigerator.
The Penguin II is also designed for quiet operation, with Atwood calling it an “ultra-quiet” AC unit. But specific decibel ratings aren’t published. Owners report it emits reasonable noise on low settings, but the high fan speed is still fairly loud and disruptive.
For minimal noise pollution, the Blizzard NXT is the winner here. Its industry-leading decibel ratings back up its claims of ultra-quiet operation. Light sleepers or RVers wanting a peaceful, relaxing environment will appreciate the NXT’s hushed performance.
- Filtration & Air Quality
Another useful feature of modern RV air conditioners is air filtration. Filtering the air before cooling helps remove dust, pollen and other particles for a cleaner interior environment.
The Blizzard NXT can be equipped with a 360-degree return air filter kit. This draws air in from all sides through a washable foam pre-filter before cooling. The kit helps eliminate airborne contaminants and allergens for purified air circulation.
By contrast, the Penguin II has no optional filtration accessories. It uses a simple foam pre-filter on the intake vent, but doesn’t offer full 360-degree filtration like the NXT.
For RVers looking to remove air particles and allergens, the Blizzard NXT definitely offers superior filtration capabilities. Sensitive travelers will appreciate its integrated air purification abilities.
- Smart Controls & Management
Advanced digital controls help make managing your AC temperature, fan speeds and modes more convenient. Here the Blizzard NXT pulls ahead of the Penguin II again.
Dometic offers an upgraded thermostat for the Blizzard NXT with digital controls and a smart device app. This allows you to set temperatures and cooling modes from your phone or tablet. You can also establish cooling schedules and get performance alerts wherever you are.
Meanwhile, the Penguin II uses a basic analog control dial thermostat. All adjustment and monitoring has to be done manually at the roof unit. No smart controls or remote accessibility.
The NXT’s cutting-edge controls integration makes it ideal for tech-savvy RVers. The ability to control temperatures from anywhere provides convenience and peace of mind.
- Efficiency & Reliability
Two other critical criteria for RV ACs are energy efficiency and leak prevention. An efficient unit will save power and money, while leak protection ensures safe, eco-friendly operation.
The Blizzard NXT utilizes R410A refrigerant, chosen for its efficiency and performance. Dometic says they rigorously test units for leaks during manufacturing using automated technology. This greatly reduces any risks of refrigerant emissions or breakdowns.
Penguin II specs are less transparent about efficiency and leak prevention. It also uses R410A refrigerant, but Atwood provides no info on leak testing or prevention methods.
In the absence of any data, Dometic’s public commitment to rigorous leak prevention provides confidence in the Blizzard NXT’s reliability and environmental friendliness. RVers wanting maximum efficiency and sustainability will favor the NXT.
- Weight Considerations
When mounting an AC unit on your RV roof, weight is an important consideration. The heavier the unit, the more strain it puts on the roof.
Here the Blizzard NXT and Penguin II are both reasonably lightweight options. The NXT weighs approximately 100 lbs for both its 15K and 13.5K models. The Penguin comes in at around 90 lbs.
This gives the Penguin II a slight edge in pure weight savings. But the NXT offers more cooling power and features for just a small 10 lb difference. Either choice won’t overly burden your RV roof compared to older AC units.
- Warranty Comparison
The warranty coverage from each brand provides insight into their confidence in the product. Longer warranties mean the company truly stands behind the unit’s quality and longevity.
Dometic provides a standard 2 year limited warranty on the Blizzard NXT, covering defects in materials or workmanship. For extra coverage, owners can purchase an additional warranty extension up to 5 years total.
The Penguin II warranty is less generous, with just a 1 year limited parts warranty. No options exist to extend the coverage further.
The NXT’s longer 2 year standard warranty demonstrates Dometic’s faith in the product. RVers wanting more long-term peace of mind can spring for the 5 year extended coverage – a level of support the Penguin II simply doesn’t match.
- Real World Performance & Reviews
Spec sheets and warranties are helpful, but real world testing data provides the best insight into an RV AC’s true performance. What do actual owners have to say about the Blizzard NXT and Penguin II?
Across multiple online forums and review sites, the Blizzard NXT earns very positive feedback for its cooling abilities. Users say it pumps out cold air quickly and is noticeably quieter than previous Dometic models.
Smart controls and phone app integration are also frequently highlighted. Critical reviews focus mainly on the high upfront cost.
Reviews of the Penguin II are also generally favorable. Owners praise it as a reasonably powerful, reliable AC unit at an affordable price point. Noise is cited as a downside by some users, especially on higher fan speeds.
A handful of reviewers experienced mechanical issues just beyond the 1 year warranty period.
In real world use, both the Blizzard and Penguin live up to expectations as strong mid-range RV air conditioners.
Overall, however, the Blizzard garners higher praise for its leading noise levels, air circulation, smart controls and lengthy warranty. For most users, the NXT’s advantages appear to justify its premium price tag.
- Installation and Maintenance
Installing or replacing an RV AC unit is an involved process best left to professionals.
Correct roof preparation, wiring and sealing are crucial to prevent leaks or condensation damage.
Most owners have a technician handle the job, costing $500-1000+ in labor.
In terms of self-maintenance, the Blizzard NXT and Penguin II have similar requirements.
Their filters should be checked and cleaned every 2-4 weeks of usage to maintain air flow.
Fins on the exterior coils also need to be thoroughly sprayed clean before storage. The NXT may require an additional gasket check and lubrication to prevent leaks.
Overall, there are no significant differences in installation or maintenance between the two models. Both require experienced installers and routine care for best performance and longevity.
Cost Considerations
When comparing RV air conditioners, price inevitably plays a role. Let’s break down the costs of the Blizzard NXT and Penguin II units:
- Dometic Blizzard NXT: $1200-1300 MSRP for unit. Additional $350 for 360 filter kit, $100 for digital thermostat and control kit. Installation runs $700+ typically.
- Penguin II: Approximately $800-900 MSRP. Installation costs about the same as the Blizzard.
There’s no denying the upfront cost of the Blizzard NXT is higher, usually about $500 more just for the base unit. However, that premium buys you greater cooling capacities, lower noise, smart controls and better warranties. Over years of use, those advantages can justify the larger investment.
For shoppers on tight budgets, the Penguin II provides very solid performance for its lower price. It just can’t match some of the NXT’s cutting-edge features that improve the RV experience.
Either choice is a major investment that becomes part of your RV for years. Focus on the long-term benefits of each rather than just the lowest initial cost. An extra $500 upfront could mean thousands of hours of superior comfort in your RV’s lifetime.
Also Read: Dometic Fridge Competitors.
Which Is The Right RV Air Conditioner For You?
After comparing the specs, performance and real world data, choosing between the Dometic Blizzard NXT and Penguin II comes down to your needs and budget. Follow these tips to pick the better RV air conditioner for your situation:
- The Blizzard NXT is ideal for RVers who:
- Have large, 400+ sq ft rigs needing maximum cooling
- Want ultra-quiet operation for peaceful environments
- Appreciate high-tech features and remote app controls
- Demand proven reliability backed by strong warranties
- The Penguin II is a good choice for RVers who:
- Own midsize RVs under 400 sq ft
- Are price conscious but want proven performance
- Don’t need advanced controls or filtration
- Require only basic analog thermostat management
While the Penguin II certainly saves money upfront, the Blizzard NXT justifies its higher price with better cooling capacities, sound levels, warranties and convenience features. For a long-term RV investment, most owners are better off choosing the NXT’s premium quality, even at the higher sticker price.
But Penguin II remains a solid budget-friendly alternative.
Final Thoughts
Keeping cool during hot weather is crucial for RV living comfort. Dometic and Atwood both make excellent air conditioning units, but the Blizzard NXT stands above for its best-in-class sound levels, air flow, filtration and smart controls.
However, the Penguin II saves money for shoppers on tight budgets who can live without the latest bells and whistles.
Carefully weigh the differences in cooling power, noise, warranties and overall convenience between these two models. Consider your budget, but also the long-term enjoyment and resale value a superior AC unit provides.
With these key factors in mind, you’ll have the ideal match of cooling performance and value for your next RV adventure.
