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Spacepak vs. Unico: Which High Velocity System Is Better?

Spacepak vs. Unico: Which High Velocity System Is Better?

Consider a high-velocity HVAC system if you’re looking for a new heating and cooling system that can serve your entire home. Comparing these systems to their more conventional equivalents, they offer more efficiency at a cheaper cost. Spacepak and Unico are two well-known brands, but which is ideal for your house? In this post, we’ve compiled the information you need to know and the solutions.

High-velocity HVAC units from Spacepak and Unico function exceptionally well, although each manufacturer may have various advantages for you. For homeowners who want a model with greater availability, rapid installation, and less operating noise, Unico is the preferable choice.

On the other hand, homeowners seeking cleaner designs and better humidity management might consider Spacepak.

It takes time to find a high-velocity system that meets your needs, so you should thoroughly evaluate each brand and model of device. Continue reading to find out more about each benefit offered by Spacepak and Unico, as well as a checklist of things to take into account when choosing a high-velocity system.

Which Should I Choose Between Spacepak and Unico High-Velocity System?

While Spacepak and Unico units do have many similarities, each has unique qualities that make them both preferable to the other. Here is an overview of how their characteristics compare.


In general, high-velocity systems are more energy and money-efficient than other types of systems.

To reduce air loss and preserve temperature, Unico uses tiny ducts and insulated supply tubing, whilst Spacepak makes use of a bigger condenser coil to increase efficiency. They can therefore result in significant long-term cost reductions.

Thus, both brands deliver solid results in terms of efficiency ratings.


Compared to Spacepak, Unico’s installation procedure is more expedient and clear. It has a twist-and-fit system that makes it simple to attach one component to another using lock-and-release tabs, greatly simplifying installation.

You no longer have to tear down your walls to add ductwork for Spacepak installation. Although it requires some effort to complete the task, the system’s design streamlines the procedure as a whole.

Size And Design

Spacepak is the winner in terms of style because to its stylish construction, which is meant to naturally fit into your home and décor. Unico, on the other hand, comes in compact varieties most often, therefore it wins when it comes to size.

To keep your home’s interior design style, you can install either brand covertly. Additionally, you can change them to match various types of flooring, wall, and ceiling materials.

Environment Control

Both brands offer comparable climate-controlled structures with options for hydronic or electric coil heaters or straightforward cooling. Although air is pumped through a high-velocity air handler, it functions similarly to previous HVAC systems.

In comparison to ordinary versions, higher air pressure improves air circulation, allowing you to reach your chosen temperature more quickly.

Sound Rating

High-velocity systems’ sound rating typically depends on how they are installed. Although both products emphasize quiet operation, Unico outperforms the competition in the real world because to their insulated tubing.

The high-velocity system from Unico is one of the quieter solutions, so if it becomes excessively noisy, there may be an issue with the installation or parts.

Level Of Comfort

According to Unico and Spacepak, aspiration technology can remove up to 30% more humidity than other systems, enabling equal temperature distribution. The concept of achieving consistent, draft-free air comfort throughout your home was invented by Spacepak.

Despite this, Spacepak still offers a sufficient sound rating to minimize disruption and disturbance within the house.

Low humidity environments are more likely to have lower energy requirements and quieter operation for your system.


When assessing your selections, one of the most important considerations is the brand’s accessibility. Because Unico commonly emerges where Spacepak does not, it will also be simpler to maintain and fix.

Regardless, if both manufacturers are offered close to you, it is advisable to weigh each of their advantages or get guidance from an HVAC expert to determine which is best for your home.


High-velocity systems are advertised by manufacturers as being less expensive than traditional systems. While this is true, it’s important to keep in mind that they are initially pricey but become significantly less expensive over time.

The installation of Spacepak is around 30% to 50% less expensive than traditional geothermal systems. In terms of price ranges, Spacepak is also significantly less expensive than Unico.

How To Choose A High Velocity System: Some Considerations

Here are a few crucial elements to take into account when assessing your selections if you’re still having difficulties determining which brand to buy.

1. Level of Climate Control

High-velocity systems enable optimal efficiency by providing improved humidity and climate management. Although a system that regulates the temperature throughout the house is ideal, having settings for various room temperatures is as important.

Examine the climate control options of your preferred brand to understand how they operate and how much control you have over temperature settings.

2. Overall Efficiency Score

Spacepak vs. Unico: Which High Velocity System Is Better?

It’s possible that the reason you’re purchasing a high-velocity system is that it maximizes efficiency better than other systems. Check the models’ efficiency ratings because the majority of them can help you save money all year long.

Think about the amount of energy they might use and the potential savings you might get from each brand. Recall that although more expensive upfront, more efficient units can more than make up for that in long-term savings.

3. Installation Methods

While some high-velocity systems may require more installation work than others, most of them are straightforward. They can also be installed covertly and have a tendency to integrate well with various home décor.

Make sure a system may be customized during installation if you want it to appear good in your house. You should also think about how much room it takes up at the same time.

Is A High Velocity System Right For Me?

Spacepak vs. Unico: Which High Velocity System Is Better?

Here are a brief summary of the pros and downsides of switching to a high-velocity system in case you need some guidance.

The Advantages

Spacepak vs. Unico: Which High Velocity System Is Better?

Here are a few justifications for thinking about purchasing a high-velocity system.

Simple Installation
A high-velocity system is easier to install, especially in homes without existing air conditioning units.

They may be installed practically anywhere in your house, including basements and closets, without tearing down walls or floors.

Removal Of humidity
The effective humidity control of these systems, which reduces humidity more effectively than typical systems due to increased air pressure, is one of its unique qualities.

Secretive Size And Design
High-velocity systems are preferred by certain households because they require less space and have blending-friendly designs or layouts. As a result, it keeps the system covert without compromising its effectiveness.

Less Noise From Operations
High-velocity systems are often silent, especially when they have insulation, but they can become noisier with more operation or poor construction. However, when compared to typical HVAC systems, the majority of models have high sound ratings.

Greater Effectiveness
By dispersing cool air more quickly, their operational design enables them to maximize cost, energy, and cooling efficiency. It enables faster achievement of desired temperatures without increasing energy expenses.

Steady Temperature
Your home’s temperature will probably remain even and regularly controlled with better efficiency and quicker air circulation.


On the other side, getting a high-velocity system has various disadvantages, some of which are listed below.

Location Of Installation And Errors
Every home has distinct wiring and ductwork, so if your installer has issues figuring them out, it could cause further problems. Get a specialist to analyze your property before switching as some homes might not be suitable for installing high-velocity systems.

High Initial Costs
Although larger long-term savings are guaranteed by high-velocity systems, their initial cost of purchase and installation may be substantial. Unico systems can be scaled up to between $25,000 and $30,000.

They tend to cost more than other HVAC units, even if these prices may vary depending on the size and installation needed.

Possibly Uncomfortable

When you’re near vents, you could experience air blasts since high-velocity systems cause air to move more quickly. If you find it uncomfortable, it’s imperative that you remember this.


With their high-velocity systems, Spacepak and Unico deliver superb performance, making both manufacturers a fantastic option for consumers looking to switch.

To put it briefly, Unico is appropriate for people who desire simpler installation and silent functioning. Spacepak is advantageous for homes looking for better designs and more effective humidity management at the same time.

Both manufacturers provide quick installation, long-term savings, and improved efficiency levels if you don’t have a choice. So you can choose whichever best suits the requirements of your property!

Spacepak vs. Unico: Which High Velocity System Is Better?

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Written by HVAC Contributor

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