SplitAtlas

Della / Vario Series

Della Vario 36k 19S R-454B 208/230V Mini-Split

Certified capacity
36,000 BTU/h[3]
SEER2
19 SEER2[3]
Heating floor
-4 F[1]
Voltage
230 V[1]
Install path
Professional install / DIY-marketed

The Vario 36k is Della's biggest single-head unit, pushing about 3 tons from one indoor head. It rates SEER2 19, EER2 9, and HSPF2 9, heating a strong 36,000 BTU/h at 47F and 20,400 BTU/h at 5F. It is built for one very large open space rather than for splitting across rooms.

1 zoneProfessional install / DIY-marketedCurrent

Refrigerant generation

R-454B - current-generation refrigerant

Paid link

$2,200 / Fresh price - checked Jul 24, 2026

Check price at Della

Need this installed?

Get installation quotes
Error Codes
Della Vario 36,000 BTU R-454B 208/230V (048-TL-36K2VB-19S-IN / 048-TL-36K2VB-19S-OUT) mini-split heat pump indoor wall unit and outdoor condenser

Image: Della

Data completeness: 90%
Last sourced
Jul 24, 2026

SplitAtlas score

7.4 / 10

Methodology
Cooling efficiencyBottom quartile

(19.0 SEER2) among 36k systems

Heating efficiencyBottom quartile

(9.0 HSPF2) among 36k systems

Cold-weather performanceBottom quartile

(56.7% heat retained at 5F; -4 F heating floor) among 36k systems

NoiseBelow average

(36 dBA indoor min / 63 dBA outdoor) among 36k systems

Installation accessibilityBottom quartile

(DIY-marketed; 25 ft precharged; 16.4 ft included line set) across the catalogue

Feature setBottom quartile

(3 verified features) across the catalogue

Price-to-performanceTop quartile

($2,200 median retail) across the catalogue

Documentation & partsBelow average

(3 manuals; spec sheet) across the catalogue

Key ratings

Rated cooling

36,000BTU/h[3]

Rated heating

36,000BTU/h[3]

Buyer review snapshot

Install difficulty

Professional flared-line install
  • Electrical: 230V; breaker/fuse 30 A.
  • Line set: Flared line connections; precharged 25 ft; included 16.4 ft; max 98 ft.

Alternatives

Availability and price context

  • Verified current price: $2,199.96 at Della; availability in_stock; checked Jul 24, 2026.

Source date

Model data sourced
Jul 24, 2026
Page reviewed
Jul 24, 2026
Source-backed records
4
Newest source retrieved
Jul 24, 2026

Review methodology

Strengths

  • Delivers the highest heating capacity in the catalog at 36,000 BTU/h at 47F.
  • Still produces 20,400 BTU/h at 5F for a large area, using low-GWP R-454B refrigerant.
  • HSPF2 9 keeps heating-season efficiency reasonable for the size.

Weaknesses

  • At 36k from a single head, a zoned multi-head design is often the smarter way to condition this much space evenly.
  • SEER2 19 and no ENERGY STAR certification make it less efficient and rebate-ineligible.

Climate suitability

Minimum heating ambient
-4 F[1]
Rated heating at 5F
20,400 BTU/h[3]
Rated heating at 17F
23,400 BTU/h[3]
Rated heating at 47F
36,000 BTU/h[3]

Specifications

Show
Manufacturer
Della
Brand
Della
Product line
Vario Series
Model number
048-TL-36K2VB-19S-IN indoor / 048-TL-36K2VB-19S-OUT outdoor
Indoor unit model
048-TL-36K2VB-19S-IN
Outdoor unit model
048-TL-36K2VB-19S-OUT
Number of zones
1
Max indoor units
not published
Rated cooling capacity
36,000 BTU/h[3]
Rated heating capacity
36,000 BTU/h[3]
Voltage
230 V[1]
MCA
not published - manufacturer specifies 30 A breaker
Maximum fuse or breaker size
30 A[1]
Breaker needed
30 A[1]
SEER2
19 SEER2[3]
EER2
9 EER2[3]
HSPF2 (Region 4)
9 HSPF2[3]
HSPF2 (Region 5)
not published
COP
not published
COP at 47F
not published
COP at 5F
2.1 COP[3]
Minimum outdoor heating temperature
-4 F[1]
Minimum outdoor cooling temperature
not published
Maximum outdoor temperature
122 F[1]
Indoor noise range
36 - 52 dBA[2]
Outdoor noise rating
63 dBA[2]
Indoor weight
39.7 lb[1]
Outdoor weight
105.8 lb[1]
Refrigerant
R-454B[3]
Refrigerant charge
not published
Manufacturer coverage
not published
Line-set size
1/4 in liquid / 5/8 in suction
Included line-set length
16.4 ft[1]
Maximum line-set length
98 ft[2]
Max line set per indoor
not published
Maximum elevation difference
65 ft[2]
Max height between indoor units
not published
Wi-Fi support
not published
Energy Star status
Not ENERGY STAR certified[4]
AHRI certification number
217568620[3]
Warranty
not published
Install path
Professional install / DIY-marketed
Marketing install label
DIY-marketed
Retail price
$2,199.96
Available retailers
Della
Manual links
AHRI Appendix M1 public detail record 217568620, Vario Series installation and operation guide, Vario 36,000 BTU Della product-page specifications
Specification sheet
Vario 36,000 BTU Della product-page specifications
Last sourced date
Jul 24, 2026

Retail purchase context

Some retailer links may earn us a commission at no extra cost; paid relationships never change scores or recommendations. Affiliate disclosure

Paid link

Check price at Della

$2,200 / Fresh price - checked Jul 24, 2026

Electrical requirements

Show
Voltage
230 V[1]
Voltage range
208/230V[1]
Phase
1[1]
Frequency
not published
MCA
not published - manufacturer specifies 30 A breaker
Breaker needed
30 A[1]
Maximum breaker size
not published
Maximum fuse size
30 A[1]
Maximum cooling current
not published
Maximum heating current
not published
Manufacturer wire notes
not published

Installation considerations

Show
Liquid line
1/4 in[1]
Suction line
5/8 in[1]
Line connection type
Flared line connections[2]
Precharged length
25 ft[2]
Included line-set length
16.4 ft[1]
Maximum line-set length
98 ft[2]
Max line set per indoor
not published
Max height between indoor units
not published
Indoor dimensions
46.94 in W x 14.19 in H x 10.25 in D[1]
Outdoor dimensions
38.5 in W x 31.63 in H x 16.56 in D[1]
Indoor weight
39.7 lb[1]
Outdoor weight
105.8 lb[1]
Drain size
not published

Related systems and guides

Frequently asked questions

Can I install the Della Vario 36,000 BTU R-454B 208/230V (048-TL-36K2VB-19S-IN / 048-TL-36K2VB-19S-OUT) myself, or do I need a pro?
Della Vario 36,000 BTU R-454B 208/230V (048-TL-36K2VB-19S-IN / 048-TL-36K2VB-19S-OUT) is built for professional installation: the line set must be flared, evacuated, and charged, which requires EPA-certified refrigerant handling. Installing it outside the manufacturer's requirements can void the warranty, so budget for a qualified HVAC installer.
Will the Della Vario 36,000 BTU R-454B 208/230V (048-TL-36K2VB-19S-IN / 048-TL-36K2VB-19S-OUT) keep heating in a cold winter?
The manufacturer publishes 20,400 BTU/h of heating output at 5F. Rated heating operation extends down to -4 F. Certified heating efficiency is 9 HSPF2. Match those numbers against your climate's design temperature - in cold regions, output at 5F matters far more than the nameplate capacity measured at 47F.
What electrical circuit does the Della Vario 36,000 BTU R-454B 208/230V (048-TL-36K2VB-19S-IN / 048-TL-36K2VB-19S-OUT) need?
Published electrical requirements: 230 V voltage, not published - manufacturer specifies 30 A breaker minimum circuit ampacity, and 30 A maximum breaker or fuse sizing. Confirm the final circuit against the unit nameplate and local code with a licensed electrician.
How far can the outdoor unit be from the indoor head?
The published maximum line-set length is 98 ft, and the included line set comes pre-charged for 25 ft. Longer runs than the included set allows typically mean added refrigerant and a pro visit, so measure the planned routing before ordering.

Data sources

Show
  1. Della: DELLA Vario Series 36000 BTU 19 SEER2 Mini Split Heat Pump AC (R-454B) - Up to 2500 Sq.Ft. official product pageSourced - manufacturer product page

    Covers Breaker needed, Maximum fuse size, Phase, Voltage, Voltage range, Included line-set length and more

  2. Della: Vario Series installation and operation guideSourced - manufacturer technical document

    Covers Indoor noise range, Line connection type, Maximum elevation difference, Maximum line-set length, Outdoor noise rating, Precharged length

  3. AHRI certificate #217568620 - search the AHRI DirectorySourced - AHRI directory

    Covers AHRI certification number, Rated cooling capacity, COP at 5F, EER2, Rated heating capacity, HSPF2 (Region 4) and more

  4. ENERGY STAR: ENERGY STAR exact row check for AHRI 215864147Sourced - Energy Star listing

    Covers Energy Star status

Last updated

Jul 24, 2026