Mitsubishi H2i Hyper-Heating Mini Splits

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Learn More About Mitsubishi SUZ-AA18NLHZ SLZ-AF18NL
Mitsubishi
Rated Capacity: 18k BTU Cooling, 20k BTU Heating. Includes (1) SUZ-AA18NLHZ Outdoor Unit, (1) SLZ-AF18NL Indoor Unit, (1) SLP-18FAU Ceiling Cassette Grille, (1) MHK2 Wireless Remote Controller
$5,444.00
In-Stock
Free Shipping & Lift Gate
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Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
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2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi SUZ-AA18NLHZ MLZ-KX18NL
Mitsubishi
Rated Capacity: 16.4k BTU Cooling, 18.4k BTU Heating. Includes (1) SUZ-AA18NLHZ Outdoor Unit, (1) MLZ-KX18NL Indoor Unit, (1) MLP-449WU Ceiling Cassette Grille
$5,240.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ MSZ-FX09NL 4-MSZ-FX12NL
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (1) MSZ-FX09NL Wall Mounted Unit, (4) MSZ-FX12NL Wall Mounted Units, (1) PAC-LMA50BC Branch Box, (1) PAC-SK88RJ-E Port Adapter
$13,679.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 2-MSZ-FX09NL 3-MSZ-FX12NL
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (2) MSZ-FX09NL Wall Mounted Units, (3) MSZ-FX12NL Wall Mounted Units, (1) PAC-LMA50BC Branch Box, (1) PAC-SK88RJ-E Port Adapter
$13,524.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 2-FX09 2-FX12 FX18
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (2) MSZ-FX09NL Wall Mounted Units, (2) MSZ-FX12NL Wall Mounted Units, (1) MSZ-FX18NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$13,684.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 3-MSZ-FX09NL 2-MSZ-FX12NL
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (3) MSZ-FX09NL Wall Mounted Units, (2) MSZ-FX12NL Wall Mounted Units, (1) PAC-LMA50BC Branch Box, (1) PAC-SK88RJ-E Port Adapter
$13,369.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 3-FX09 FX12 FX18
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (3) MSZ-FX09NL Wall Mounted Units, (1) MSZ-FX12NL Wall Mounted Unit, (1) MSZ-FX18NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$13,529.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 4-MSZ-FX09NL MSZ-FX12NL
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (4) MSZ-FX09NL Wall Mounted Units, (1) MSZ-FX12NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box, (1) PAC-SK88RJ-E Port Adapter
$13,214.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 4-MSZ-FX09NL MSZ-FX18NL
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (4) MSZ-FX09NL Wall Mounted Units, (1) MSZ-FX18NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$13,374.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 5-MSZ-FX09NL
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (5) MSZ-FX09NL Wall Mounted Units, (1) PAC-LMA50BC Branch Box, (1) PAC-SK88RJ-E Port Adapter
$13,059.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ MSZ-GX06NL 4-MSZ-GX12NL
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (1) MSZ-GX06NL Wall Mounted Unit, (4) MSZ-GX12NL Wall Mounted Units, (1) PAC-LMA50BC Branch Box, (1) PAC-SK88RJ-E Port Adapter
$13,186.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ GX06 3-GX12 GX15
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (1) MSZ-GX06NL Wall Mounted Unit, (3) MSZ-GX12NL Wall Mounted Units, (1) MSZ-GX15NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$13,194.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ GX06 3-GX12 GX18
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (1) MSZ-GX06NL Wall Mounted Unit, (3) MSZ-GX12NL Wall Mounted Units, (1) MSZ-GX18NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$13,308.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 2-MSZ-GX06NL 3-MSZ-GX12NL
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (2) MSZ-GX06NL Wall Mounted Units, (3) MSZ-GX12NL Wall Mounted Units, (1) PAC-LMA50BC Branch Box, (1) PAC-SK88RJ-E Port Adapter
$12,968.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 2-GX06 2-GX12 GX15
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (2) MSZ-GX06NL Wall Mounted Units, (2) MSZ-GX12NL Wall Mounted Units, (1) MSZ-GX15NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$12,976.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 2-GX06 2-GX12 GX18
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (2) MSZ-GX06NL Wall Mounted Units, (2) MSZ-GX12NL Wall Mounted Units, (1) MSZ-GX18NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$13,090.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 3-MSZ-GX06NL 2-MSZ-GX12NL
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (3) MSZ-GX06NL Wall Mounted Units, (2) MSZ-GX12NL Wall Mounted Units, (1) PAC-LMA50BC Branch Box, (1) PAC-SK88RJ-E Port Adapter
$12,750.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 3-GX06 GX12 GX15
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (3) MSZ-GX06NL Wall Mounted Units, (1) MSZ-GX12NL Wall Mounted Unit, (1) MSZ-GX15NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$12,758.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 3-GX06 GX12 GX18
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (3) MSZ-GX06NL Wall Mounted Units, (1) MSZ-GX12NL Wall Mounted Unit, (1) MSZ-GX18NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$12,872.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 4-MSZ-GX06NL MSZ-GX15NL
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (4) MSZ-GX06NL Wall Mounted Units, (1) MSZ-GX15NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$12,540.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 4-MSZ-GX06NL MSZ-GX18NL
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (4) MSZ-GX06NL Wall Mounted Units, (1) MSZ-GX18NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$12,654.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 3-GX06 GX09 GX12
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (3) MSZ-GX06NL Wall Mounted Units, (1) MSZ-GX09NL Wall Mounted Unit, (1) MSZ-GX12NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box, (1) PAC-SK88RJ-E Port Adapter
$12,605.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 3-GX06 GX09 GX15
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (3) MSZ-GX06NL Wall Mounted Units, (1) MSZ-GX09NL Wall Mounted Unit, (1) MSZ-GX15NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$12,613.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Learn More About Mitsubishi MXZ-SM48NLHZ 3-GX06 GX09 GX18
Mitsubishi
Includes (1) MXZ-SM48NLHZ Outdoor Unit, (3) MSZ-GX06NL Wall Mounted Units, (1) MSZ-GX09NL Wall Mounted Unit, (1) MSZ-GX18NL Wall Mounted Unit, (1) PAC-LMA50BC Branch Box
$12,727.00
In-Stock
Free Shipping & Lift Gate
Learn More About Free Freight
Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.

Tools & Articles

Keeping Your Mini Split Working Through the Winter
Read Article
How to Pick the Perfect Mitsubishi Mini-Split Condenser
Read Article

What Size Mini Split Should You Buy
Read Article

Unlike conventional units, Mitsubishi H2i hyper-heating mini splits are able to provide heating in very cold climates, all the way down to -13 degrees fahrenheit. Instead of opting for a backup heat source when your traditional system cuts off, go with a Mitsubishi H2i hyper-heating mini split and stay warm during winter's worst.