Ductless Mini Splits: What Do I Need to Know?

Ductless mini splits are an efficient way to heat and cool many homes and even certain commercial and multi-unit housing applications. They can be an effective replacement to conventional HVAC systems. Since its first introduction decades ago in Asia, mini splits have made innovative and technological changes to become an ideal solution in today’s market and growing in popularity for good reason. 

Ductless mini splits are composed of two primary components – an outdoor condensing unit, which contains a compressor and one or more indoor air handlers (the evaporators).  A conduit that houses the power cable, refrigerant liquid and suction tubing link the outdoor and indoor unit(s). All indoor units are powered by the outdoor unit single phase power. These systems require 208V/1 phase electrical power although there are some smaller 115V systems available with certain brands.

ductless mini-splits

Analyzing the Benefits of Ductless Mini Splits

Cost Savings

Overall cost savings could arguably be the top reason people research and choose ductless mini splits. Ductless mini splits have some of the highest energy efficiencies in the industry. They use less energy, lowering monthly utility costs for a quicker payback. The upfront cost of installation is also typically lower than traditional systems. Precise customizable temperature settings in each individual zone create not only personalized comfort in all rooms, but also savings whether occupied or unoccupied. There are also a wide range of Energy Star rated mini splits that qualify for rebates and incentives.  

Energy Efficiency

Energy efficiency and high performance are added benefits of ductless mini splits. Inverter variable speed compressor technology uses less energy and is measurably quieter than conventional systems. Unlike conventional systems that cycle on and off, an inverter compressor ramps up or down to match the capacity needed to maintain comfort levels within the conditioned zone(s). 

Additionally, this greatly enhances the ability to efficiently dehumidify and increase air quality by running the fan longer. Ductless mini splits eliminate efficiency losses in ductwork due to leaks and conduction as well as the need to consume more energy to make up for the efficiency losses. There are models offered by some manufacturers that perform in extreme weather conditions as a reliable primary heat source. The shift to using electricity rather than burning fossil fuels like gas and oil reduces the carbon footprint, making these systems more environmentally friendly.

Ductless Mini Splits Are Easy to Install

Ductless mini splits offer design flexibility and easy installation. It can be both ducted and ductless in single and multi-zone configurations to meet the design needs. Ductless mini splits can be used in new construction or upgrade/retrofit an old furnace or heat pump system using the existing duct. It can be added to a home or business that currently does not have air conditioning or heating as the installation is much less invasive. A ductless mini split installation requires only a 3-inch hole drilled in the wall. Hence, they require little to no ductwork and often take less time to install than conventional HVAC systems. Ductless mini splits can supplement an existing system to provide additional comfort and control on room additions or remodeling projects. Smaller indoor and outdoor units ensure space-saving convenience. Moreover, models with long refrigerant piping capability can increase the distance between the indoor and outdoor units, allowing for extra design and installation flexibility.

Are There Any Downsides to Ductless Mini Splits?

While mini splits produce a significant number of benefits and value, there are limitations that need to be considered. All ductless mini splits have piping length and elevation limitations that cannot be exceeded. Typically, the largest multi zone mini split can have up to eight connected indoor units. With that many indoor units, there may be a requirement for branch distribution boxes that need to be installed indoors. Most mini split systems are only available up to 5 tons. The life expectancy of a ductless mini split is anywhere from 10 to 20 years.

Finding a Qualified Installer

Proper installation and accurate load calculations for system sizing are crucial to the potential cost savings and performance of any ductless mini split.  Finding a qualified installer and asking the right questions are a must in deciding between potential contractors. Asking how the sizing of the mini split system is determined can help qualify the experience and knowledge level of the installer as well as the amount of utility savings. If not sized correctly, it can lead to a series of ongoing issues and problems. To qualify for local energy rebates and state or government incentives and tax credits, an installer must be EPA certified and approved by certain local energy partnership programs. Knowing this information prior to installation is very important. 

Another question to ask a potential installer is if they are certified by the equipment manufacturer they intend to install. Installers are typically required to complete training classes and be certified by the manufacturer to qualify for extended warranties and install their equipment. Make sure to ask for the installer’s certificates from the manufacturer to see how current they are.  Inquire about the product warranty and the warranty process. The length of the warranty speaks volumes for the quality of the product itself. Depending on the manufacturer, warranties can range anywhere from 5 years and upwards to 12 years when registered by an approved and certified installer. 

While many homes have conventional HVAC systems, that is not the only type available in today’s market. Ductless mini splits provide a variety of benefits and values. It is an excellent, efficient, and innovative technology that can transform your home or light commercial application. Ductless mini splits are a good investment with exceptional year-round comfort and can be the ideal solution for both heating and cooling.

Klima Can Help with All Your Ductless Mini Splits Needs

At Klima, we offer innovative and integrated HVAC solutions for all your needs. If you’re looking for help regarding ductless mini splits and installation, please contact your Klima Sales representative for pricing and availability at this link. To learn more about our work and how we can help, please visit our website and request a quote by clicking the button at the top right corner today!

LG Hydro Kit: Understanding Its Benefits and Purpose

If you’re looking for an efficient way to make hot and/or chilled water without using fossil fuels, the LG Hydro Kit may be just what you need. The Hydro Kits pair up to LG’s Multi-V condensers, providing VRF industry-leading technology and performance.  Offered in 2 different versions and several different sizes, there are a wide variety of applications that can utilize this awesome technology. So if you’re in the business of finding cutting edge solutions to complex HVAC challenges — check out this blog to see why your next project might benefit from LG’s Hydro Kit!

The Benefits of the LG Hydro Kit

LG Hydro Kit

The LG Hydro Kit is offered in 2 versions; medium temp and high temp. The medium temp version can produce chilled water down to 41F and hot water up to 122F. The high temp Hydro Kit is a heating-only unit but can produce leaving hot water temperatures up to 176F. With leaving water temperatures that close to the typical 180F target of traditional hydronic boiler systems, you can theoretically replace gas or oil fired boilers with LG VRF air source heat pumps and hydro kits.

Historically, heat pumps in the northeast were not capable of providing adequate low ambient heating, let alone a version delivering hot water over 170F.  So during those times the only alternative system that would not burn fossil fuels would be electric boilers or hot water heaters.  The electric resistance heating elements in those units generate 3414 btus/hour of heat for every 1000 watts of electrical input.

For areas with relatively expensive electricity like the New York Metro area, this is not an economical way to heat a building or home. With the introduction of new heat pump technologies like the LG Multi-V 5, every 1000 watts of electrical power is now creating double the heating output of electric resistance heating or higher (depending on a variety of factors) making operating costs very attractive compared to other sources. 

If systems like this are powered by renewable sources like solar or wind power, homes and businesses can be producing heating without any emissions or fossil fuel consumption which is great for the planet. Additionally, since these heat pumps will use half or less of the electricity compared to resistance heating they can help stretch those renewable power resources further limiting the reliance on the power grid while saving on energy costs.

Efficient Use of Interior Space

For metropolitan areas like New York City, interior space is a scarce resource in limited supply.  Traditional boiler systems have to be housed in a dedicated boiler room which eats up considerable interior space. The LG Hydro Kit is a split system type where half of the system is located outdoors and the other component is indoors. The Hydro Kit is much smaller in footprint compared to a boiler and the service space requirements are often times less than a traditional boiler. All of this leads to more usable interior space, which can be a very good thing in markets with sky-high real estate costs.

Flexibility in Design

LG Hydro Kit

The capacity offerings of the LG Hydro Kits lend themselves to a very flexible way of heating and/ or cooling a building.  The medium temp versions come in 3.5 ton and 8 ton sizes. The high temp version is offered in 3.5 ton and 6.5 ton offerings. For larger applications, multiple Hydro Kits can be installed in parallel and staged to maximize efficiency. Additionally, having multiple systems offers some additional level of redundancy over larger central plant systems.  

For multi-family buildings, domestic hot water and hydronic heating plants are often central to the building and very difficult to bill their usage out to individual tenants. With smaller Hydro Kit systems, each condensing unit and Hydro Kit can potentially be fed from each tenant’s own power meter. This eliminates the cost and responsibility of the equipment from the Landlord and can lower common charges in the rent or building fees. An additional benefit of modular systems for larger buildings is the ability to stagger system operation to reduce demand charges from the utility.  

There are several air to hot water heat pump systems offered in the market now. Many of these are what is referred to as ‘Mono-Bloc’ types where the hot water heat exchanger is outside, attached to the condensing unit.  While this may be a plus from the installation side, the downside to this is that glycol will most likely be required in the heating water for colder climates like the Northeast.  

The medium temp Hydro Kits have started to replace aging air cooled chilled water systems throughout the New York Metro area. With the modular design and flexibility of piping runs on LG’s Multi-V 5 systems, clients have ripped out their small to medium sized chillers, replaced them with LG medium temp Hydro Kits and did not have to touch their existing chilled water air handlers. These systems now offer more redundancy, lower operating cost and take up less space outdoors than previous air cooled chillers. Additionally, the medium temp Hydro Kits can produce lower temperature hot water for radiant heat systems.  

Potential Issues and concerns

While the LG Hydro Kits pack a tremendous amount of technology in a small package, keep in mind they are more complicated than a traditional boiler or chiller. Clients should make sure to find an installing contractor and service company with proper training from the manufacturer to successfully install and maintain the system for years to come. 

LG’s Hydro Kit may require more labor to install over a traditional boiler or chiller as it is a split system.  The benefits of the operational cost, environmental impact have to be weighed against any potentially higher upfront costs.

Final Thoughts on Why the LG Hydro Kit is Worth It

The Hydro Kit’s innovative technology allows for the efficient use of energy, resulting in lower electricity bills and a more sustainable future while eliminating harmful Carbon Monoxide emissions in the home or business.

With natural gas becoming more difficult to access, the LG Hydro Kit offers the best alternative over the other technologies currently out on the market. Investing in an LG Hydro Kit may seem like a simple choice when looking at all of the short-term benefits that you gain; however, when we consider the long-term environmental impact it has on our planet, this decision suddenly seems much wiser. After all, small changes such as this can have a huge impact — making the LG Hydro Kit more than worth your investment.

If you have any questions, the team at Klima is here to help! To learn more, please visit our website and contact us today!