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🟢 BEST DIY VALUE (22 SEER2)
DELLA Serena Series 12,000 BTU (115V) 🟢 BEST DIY VALUE (22 SEER2)
Single Zone
Single Zone
Final Price: $759.96 (Regular: $799.96 | Extra 5% OFF with code: TRANTHANHTHAI)
Ultra-efficient 22 SEER2 heat pump covering up to 550 sq. ft.
PureClean self-cleaning tech & full pre-charged DIY kit included.
Complimentary Lifetime Parts Warranty upon 100-day registration.
🏆 BEST FOR BEDROOMS & QUIET (24dB)
TOSOT Cosmo 12,000 BTU (230V) 🏆 BEST FOR BEDROOMS & QUIET (24dB)
Single Zone
Single Zone
Final Price: $647.99 (Regular: $809.99 | Save $162 Instant Deal)
Whisper-quiet 24 dB sound level designed for undisturbed deep sleep.
Heavy-duty low-ambient winter heating down to -13°F (-25°C).
Robust 230V system backed by a full 5-Year manufacturer warranty.
🏭 TOP COMMERCIAL GRADE (DAIKIN)
Daikin Oterra 12,000 BTU (115V) 🏭 TOP COMMERCIAL GRADE (DAIKIN)
Single Zone
Single Zone
Final Price: $1,282.65 (Regular: $1,810.80 | Save $528.15 Factory Direct)
World-renowned Daikin inverter reliability with standard 115V ease.
Complete system bundle: Condenser ($826.20) + Air Handler ($456.45).
Industry-leading 10 to 12-Year warranty with free online registration.
QUICK VERDICT GUIDE :
Choose Della Serena ($759.96) if you want the highest efficiency (22 SEER2) at the lowest entry cost and plan to install it yourself to save on labor.
Choose TOSOT Cosmo ($647.99) if you want the lowest checkout price, ultra-quiet cooling for a bedroom, and have an existing 230V outlet.
Choose Daikin Oterra ($1,282.65) if you prioritize top-tier commercial build quality, a 10–12 year warranty, and standard 115V plug-in convenience.
Pricing, stock availability, and promotional codes (including code TRANTHANHTHAI) are verified periodically. Click "Check Live Price" to confirm today’s checkout total and active discounts.
BEST 2-ROOM DIY VALUE (22 SEER2)
DELLA Serena Series 18,000 BTU Dual Zone (9K + 9K) 208/230V (Multi-zone dedicated line) BEST 2-ROOM DIY VALUE (22 SEER2)
Dual Zone
Dual Zone
Final Price: $2,089.96 (Was: $2,199.96 | Save $110 with code: TRANTHANHTHAI)
Ultra-efficient 22 SEER2 dual heat pump system covering up to 800 sq. ft.
Pre-charged line sets and quick-connect design save $1,500+ on contractor fees.
Exclusive Lifetime Parts Warranty coverage with simple 100-day registration.
🏆 BEST VALUE MULTI-ZONE & ARCTIC HEATING
TOSOT 18,000 BTU Dual Zone Heat Pump (9K + 9K) 208/230V (Multi-zone dedicated line) 🏆 BEST VALUE MULTI-ZONE & ARCTIC HEATING
Dual Zone
Dual Zone
Final Price: $1,799.00 (Was: $1,999.00 | Instant $200 OFF Deal)
Lowest entry checkout price ($1,799) with full 2-room hardware kit included.
Deep winter heating engineered to operate flawlessly down to -22°F (-30°C).
Whisper-quiet 24 dB sound rating and full 5-Year manufacturer warranty.
🏭 TOP COMMERCIAL WHOLESALE (DAIKIN)
Daikin MXM 18,000 BTU 21 SEER2 Dual Zone (9K + 9K) 208/230V (Multi-zone dedicated line) 🏭 TOP COMMERCIAL WHOLESALE (DAIKIN)
Dual Zone
Dual Zone
Final Price: $3,247.20 (Was: $4,870.80 | Save $1,623.60 Factory Direct)
Genuine Daikin commercial-grade multi-split inverter system (SKU: 194787).
Massive $1,623.60 wholesale discount with in-stock units ready for free shipping.
Up to 12-Year extended compressor and parts warranty with online registration.
QUICK VERDICT GUIDE :
Choose Della Serena 2-Zone ($2,089.96 with code TRANTHANHTHAI) if you want the highest energy efficiency (22 SEER2) and pre-charged lines to install it yourself, saving over $1,500 on professional labor.
Choose TOSOT Dual-Zone ($1,799.00) if you want the lowest upfront purchase cost for two rooms, whisper-quiet operation (24 dB), and proven heating in extreme sub-zero winter down to -22°F.
Choose Daikin MXM 2-Zone ($3,247.20) if you want world-class durability from the top commercial brand, a massive $1,623 wholesale discount, and up to 12 years of warranty protection.
Pricing, stock availability, and promotional codes (including code TRANTHANHTHAI) are verified periodically. Click "Check Live Price" to confirm today’s checkout total and active discounts.
🟢 BEST 3-ROOM VALUE & 24 SEER2
DELLA Optima Series 27,000 BTU Tri-Zone (9k+9k+9k) 230V (Dedicated line) 🟢 BEST 3-ROOM VALUE & 24 SEER2
Tri-Zone
Tri-Zone
Final Price: $2,550.71 (Was: $2,684.96 | Save $134.25 with code: TRANTHANHTHAI)
Top-tier 24 SEER2 efficiency cools and heats up to 1,200 sq. ft across 3 rooms.
Next-gen eco-friendly R454B refrigerant and complete DIY-ready accessories included.
Complimentary Lifetime Parts Warranty option with simple 100-day registration.
🏆 BEST 30K BTU POWER & ARCTIC HEATING
TOSOT 30,000 BTU Tri-Zone Heat Pump230V (Dedicated line) 🏆 BEST 30K BTU POWER & ARCTIC HEATING
Tri-Zone
Tri-Zone
Final Price: $2,799.00 (Was: $2,999.00 | Instant $200 OFF Deal)
Massive 30,000 BTU capacity covering large home layouts up to 1,950 sq. ft.
Deep arctic winter heating down to -22°F (-30°C) with Blue Fin anti-corrosion protection.
Whisper-quiet 23 dB sleep operation and full 5-Year manufacturer warranty.
🏭 TOP COMMERCIAL GRADE (DAIKIN 7+7+15)
Daikin MXM 24,000 BTU 21 SEER2 3-Zone (7+7+15) 230V (Dedicated line) 🏭 TOP COMMERCIAL GRADE (DAIKIN 7+7+15)
Tri-Zone
Tri-Zone
Final Price: $4,732.80 (Was: $7,099.20 | Save $2,366.40 Wholesale Deal)
Smart 7k + 7k + 15k layout: Perfect for two private bedrooms plus one large living area.
Commercial-grade Daikin Swing Inverter platform (SKU: 195109) with in-stock availability.
Industry-leading 10 to 12-Year warranty protection with online registration.
QUICK VERDICT GUIDE :
Choose Della Optima 3-Zone ($2,550.71 with code TRANTHANHTHAI) if you want the highest energy rating (24 SEER2) to minimize monthly electric bills and the lowest upfront equipment cost for 3 rooms.
Choose TOSOT 30,000 BTU Tri-Zone ($2,799.00) if you need higher cooling power (up to 1,950 sq. ft), whisper-quiet bedroom mode (23 dB), and proven winter heating down to -22°F.
Choose Daikin MXM 3-Zone ($4,732.80) if you want a tailored 7+7+15 layout for 2 bedrooms + 1 living room, unmatched Daikin commercial durability, and up to 12 years of warranty protection.
Pricing, stock availability, and promotional codes (including code TRANTHANHTHAI) are verified periodically. Click "Check Live Price" to confirm today’s checkout total and active discounts.
🟢 BEST 4-ROOM DIY VALUE (23 SEER2)
DELLA Optima Series 35,000 BTU Quad-Zone (9k x 4) 🟢 BEST 4-ROOM DIY VALUE (23 SEER2)
4 - Zone
4 - Zone
Starting at $3,448.46* (Was: $3,629.96 | Save $181.50 with code: TRANTHANHTHAI)
Highest 23 SEER2 energy rating minimizes electricity bills across 4 separate living spaces up to 1,600 sq. ft.
Complete 4-zone installation bundle with pre-charged lines saves upwards of $2,000 in third-party contractor fees.
Lifetime parts replacement option available upon online registration within 100 days.
🏆 BEST VALUE DEAL ($600 OFF) & ARCTIC HEATING
TOSOT 36,000 BTU Quad-Zone Heat Pump (9k x 4) 🏆 BEST VALUE DEAL ($600 OFF) & ARCTIC HEATING
4 - Zone
4 - Zone
Starting at $3,299.99* (Was: $3,899.99 | Save $600.00 Instant Factory Sale)
Lowest upfront entry cost for 4 rooms thanks to an immediate $600 manufacturer price drop.
Ultra-low ambient heat pump keeps producing warmth down to severe northern freezes of -22°F (-30°C).
Whisper-quiet 23 dB bedroom sound mode, bundled with 4 full 16-foot copper line sets and a 5-year warranty.
🏭 TOP COMMERCIAL WHOLESALE (DAIKIN 4-ZONE)
Daikin 36,000 BTU 20 SEER2 Quad-Zone (9k x 4) 🏭 TOP COMMERCIAL WHOLESALE (DAIKIN 4-ZONE)
4 - Zone
4 - Zone
Starting at $5,888.00* (Was: $8,832.00 | Save $2,944.00 Factory Direct)
Heavy-duty industrial Daikin 4MXM outdoor unit built for extreme longevity and demanding multi-room usage.
Massive $2,944 wholesale markdown directly off factory MSRP with free curbside freight delivery.
Up to 12 years of comprehensive parts and compressor protection when registered online.
QUICK VERDICT GUIDE:
Choose TOSOT 36,000 BTU ($3,299.99): If budget is your main priority. The $600 direct discount makes it the most affordable 4-zone setup on the market, while delivering unmatched -22°F cold-weather performance.
Choose Della Optima 35,000 BTU ($3,448.46 with code TRANTHANHTHAI): If you want maximum ongoing power savings (23 SEER2) and plan to self-install using pre-charged line sets to bypass professional installation charges.
Choose Daikin Quad-Zone ($5,888.00 via HVACDirect): If you are outfitting a high-end or commercial property and require Daikin's engineering, wholesale distributor rates, and a 12-year warranty.
Pricing, stock availability, and promotional codes (including code TRANTHANHTHAI) are verified periodically. Click "Check Live Price" to confirm today’s checkout total and active discounts.
🟢 BEST 5-ZONE PRE-SET DIY VALUE (UP TO 2,900 SQ. FT)
DELLA Vario Series 45,000 BTU Five-Zone (9k+9k+12k+12k+18k) 🟢 BEST 5-ZONE PRE-SET DIY VALUE (UP TO 2,900 SQ. FT)
5 - Zone
5 - Zone
Starting at $4,013.71* (Was: $4,224.96 | Save $211.25 with code: TRANTHANHTHAI)
Pre-configured sizing eliminates guesswork, offering a balanced setup: two 9k bedrooms, two 12k mid-size suites, and one 18k high-output living area up to 2,900 sq. ft.
Full 5-zone DIY installation kit with factory pre-charged copper lines bypasses over $2,500 in third-party technician labor costs.
Direct 5% savings applied automatically at checkout across your complete order using exclusive code TRANTHANHTHAI.
🏭 MODULAR CUSTOM 5-ZONE & NEXT-GEN R454B
Stealth DIYCool Design Your Own Five Zone Heat Pump System (R454B) 🏭 MODULAR CUSTOM 5-ZONE & NEXT-GEN R454B
5 - Zone
5 - Zone
Starting at $2,485.99* (Was: $3,824.60 | Save $1,338.61 Wholesale Discount)
Highly adaptable modular design lets you select custom indoor unit sizes for each of your 5 rooms to match unique architectural floor plans.
Equipped with next-generation eco-friendly R454B refrigerant, providing higher thermodynamic efficiency and future-proof regulatory compliance.
Unbeatable $2,485.99 entry price with an instant $1,338.61 distributor discount, featuring quick-connect fittings and free freight delivery.
QUICK BUYER'S GUIDE :
Choose Della Vario 45,000 BTU ($4,013.71 with code TRANTHANHTHAI): If you want a complete, ready-to-mount 5-room package tailored for large family residences (up to 2,900 sq. ft) with all matched lines and accessories included in one delivery.
Choose Stealth DIYCool 5-Zone ($2,485.99 via HVACDirect): If you want maximum budget efficiency with a massive $1,338.61 discount, custom BTU sizes for non-standard room layouts, and next-generation R454B refrigerant.
Pricing, stock availability, and promotional codes (including code TRANTHANHTHAI) are verified periodically. Click "Check Live Price" to confirm today’s checkout total and active discounts.
🟢 BEST 6-ZONE TURNKEY DIY PACKAGE (24 SEER2 | UP TO 2,400 SQ. FT)
DELLA Optima Pro CloudAir Series 48,000 BTU Six Zone (6K+6K+6K+9K+12K+12K) 🟢 BEST 6-ZONE TURNKEY DIY PACKAGE (24 SEER2 | UP TO 2,400 SQ. FT)
6 Zone
6 Zone
Starting at $5,338.96* (Was: $5,619.96 | Save $281.00 with code: TRANTHANHTHAI)
Ultra-efficient 24 SEER2 performance combined with R454B refrigerant optimizes electricity costs across 6 independent living spaces up to 2,400 sq. ft.
Perfectly pre-configured indoor handler distribution (3x6k + 1x9k + 2x12k) eliminates guesswork for large families and residential properties.
Complete 6-zone DIY kit with factory pre-charged lines saves homeowners over $3,000 in professional installation fees, plus an instant 5% checkout discount with promo code TRANTHANHTHAI.
🏭 MODULAR CUSTOM 6-ZONE & SAVE $3,171.99 WHOLESALE (R454B)
Stealth DIYCOOL Design Your Own 6 Zone Heat Pump System R454B 🏭 MODULAR CUSTOM 6-ZONE & SAVE $3,171.99 WHOLESALE (R454B)
6 Zone
6 Zone
Starting at $3,171.99* (Was: $6,343.98 | Save $3,171.99 Wholesale Discount)
Build-Your-Own modular engineering lets you handpick each of your 6 indoor unit sizes to fit asymmetric multi-story or sprawling floor layouts.
Unbeatable $3,171.99 direct entry price backed by an extraordinary $3,171.99 wholesale distributor markdown and next-generation R454B refrigerant.
Heavy-duty Quick-Connect fittings require no vacuuming and include free residential freight shipping directly to your driveway.
QUICK BUYER'S GUIDE :
Choose Della Optima Pro CloudAir 48,000 BTU ($5,338.96 with code TRANTHANHTHAI): If you want the highest energy efficiency available (24 SEER2), a pre-balanced indoor layout matching standard American households up to 2,400 sq. ft, and a hassle-free all-in-one delivery with matched line sets.
Choose Stealth DIYCool 6-Zone ($3,171.99 via HVACDirect): If upfront purchase price is your top priority. With a massive $3,171.99 wholesale markdown (50% off MSRP), you get the freedom to design custom indoor unit sizes for non-standard 6-room floor plans.
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