Product Overview
Performance at a Glance
Why Choose the SENA-18HF/D?
| Independent two-zone comfortTwo indoor units connect to one outdoor unit, allowing settings to be adjusted separately for each served area. | Five indoor-unit combinationsChoose 6,000 / 6,000, 6,000 / 12,000, 9,000 / 9,000, 9,000 / 12,000 or 12,000 / 12,000 BTU above. | Efficient cold-climate operationThe 25 SEER2 system is ENERGY STAR certified, provides heating at -30 °C (-22 °F) with up to 75% efficiency and can reduce annual energy costs by up to 50%. |
Everything You Need to Get Started
One installation kit is supplied for each 9,000 BTU indoor unit.
The outdoor unit contains an R454B refrigerant pre-charge for a combined installation length of up to 75 ft.
Complete Your Installation
Buy with Confidence
Manufacturer warranty
10 years on the compressor · 5 years on parts
Coverage is subject to Senville’s warranty terms.
Rebates May Be Available
Availability depends on the purchaser, location, utility or state program, equipment combination and completed installation. Federal heat-pump tax credits are not available for property placed in service after December 31, 2025.
Check available programs →Frequently Asked Questions Before Purchase
The product page recommends approximately 750 to 1,250 sq. ft. Final sizing must also account for insulation, climate, windows, ceiling height and sun exposure.
The SENA-18HF/D is designed to provide heating down to an outdoor temperature of -30 °C (-22 °F).
Choose 6,000 / 6,000, 6,000 / 12,000, 9,000 / 9,000, 9,000 / 12,000 or 12,000 / 12,000 BTU above. The selected combination determines the two indoor units included with the system. Have a professional confirm sizing for each served area.
No. Professional installation is required for refrigerant handling, system commissioning and compliance with the warranty terms.
The product page specifies 10 years of compressor coverage and five years of parts coverage, subject to Senville's installation, registration and maintenance conditions.







