Best for: Quiet Operation & Baseboard Expertise
Slant/Fin specializes in hot water and condensing systems (no steam boilers available).
Yes — Slant/Fin boilers are a solid mid-range option. Our editorial score is 4.5/5 based on published efficiency, climate fit, warranty, features, and price positioning. Slant/Fin is associated with Slant/Fin Corporation; confirm the exact model platform, parts path, and coverage rather than assuming they are shared. For a Long Island home, compare the exact matched system and written installation scope because design and commissioning can matter as much as the badge on the equipment.
Ratings are editorial comparison scores—not customer reviews, installation counts, or manufacturer endorsements.
A useful Slant/Fin comparison starts with the exact indoor and outdoor model pairing—not the brand name alone. Home+ Air & Heat can review Slant/Fin boiler options for homes in our covered Nassau County and western Suffolk service areas, then document whether the proposed equipment, capacity, electrical scope, and installation approach fit the project.
Before work is authorized, ask for the design method, AHRI match where applicable, installer or dealer qualification required by the manufacturer, registration responsibility, parts coverage, labor coverage, exclusions, and current incentive assumptions in writing. Those details vary by model, project, contractor status, installation date, and current program rules.
Slant/Fin rates 4.5 out of 5 in our mid range-tier boiler assessment. The scoring reflects build quality, parts availability on Long Island, warranty terms, and how the equipment holds up in the homes we service. It fits best when quiet operation & baseboard expertise. Reviews are only half the picture — sizing and installation quality drive most of the failures we get called to.
This is Home+ Air & Heat's own editorial assessment as an insured installing contractor, not an average of customer star ratings.
Slant/Fin strikes an excellent balance between performance, features, and value. Here's what Slant/Fin offers.
Lifetime heat exchanger warranty provides unmatched peace of mind.
Up to 95% AFUE helps reduce your monthly energy bills.
Proudly designed and manufactured in the United States.
Overall Score
Great For
Not Ideal For
Slant/Fin has served Long Island homeowners since 1949, with deep expertise in steam and hot water heating systems common in Nassau County's older housing stock. Our Trotta technicians appreciate Slant/Fin's local roots and reliable baseboard products.
The Victory?"SE series achieves up to 96% AFUE efficiency with cast iron and steel construction optimized for residential applications. Slant/Fin's integration of boilers with matching baseboard systems ensures optimal heat transfer and efficiency.
For homes in communities like Lynbrook, Valley Stream, and Malverne with existing steam or hot water systems, Slant/Fin provides seamless replacement options. Their understanding of Long Island heating patterns informs product design.
Local parts availability through regional distributors and the company's Long Island heritage ensures excellent service support. Slant/Fin's straightforward construction means most technicians can service these units efficiently.
PSEG Long Island rebates apply to qualifying Slant/Fin installations. The company's focus on integrated heating solutions—boilers plus baseboard—provides whole-system efficiency.
For homeowners seeking local expertise and proven technology from a Long Island-based manufacturer, Slant/Fin delivers decades of reliable performance tailored to our region's specific heating needs.
— Blake Ruwali, Home+ Air & Heat
Slant/Fin models with published specifications.
A condensing gas boiler now in Slant/Fin's vintage library; see the Lynx LX page for sizes and warranty.
Best for: Smaller homes with limited basement space
$3,500 - $6,000installed
View Full DetailsSlant/Fin boiler models with published AFUE, boiler type and typical installed price ranges.
Model: GXHA
A low-profile cast-iron gas steam boiler, GXHA-100 to GXHA-200, about 81% AFUE, chimney vented, with a 10-year steam warranty.
Estimated Installed Price:
Contact for pricing
Best For
Older homes with steam heat and low basement ceilings that need a chimney-vented replacement.
Model: LXW
A condensing gas boiler now in Slant/Fin's vintage library; see the Lynx LX page for sizes and warranty.
Estimated Installed Price:
$3,500 - $6,000
Best For
Smaller homes with limited basement space
Model: 70-210 MBH
A conventional cast-iron gas hot water boiler, 70,000–210,000 BTU/hr at up to 82.3% AFUE, chimney vented with a lifetime limited warranty.
Estimated Installed Price:
Contact for pricing
Best For
Budget chimney-vented replacements in gas hot water baseboard homes.
Model: 103-132 MBH
A direct-vent cast-iron oil boiler rated 87% AFUE, firing 0.85–1.10 GPH, with side-wall concentric venting and an optional tankless coil.
Estimated Installed Price:
Contact for pricing
Best For
Oil-heated homes with no usable chimney that want to stay on oil.
Model: B-120A/200A
A wall-hung aluminum condensing gas boiler rated 93% AFUE, in 30,000–120,000 and 50,000–200,000 BTU/hr sizes with direct PVC venting.
Estimated Installed Price:
Contact for pricing
Best For
Homes replacing a chimney-vented gas boiler that want condensing efficiency in a small wall-mounted unit.
Model: CHS-85-399
A stainless fire-tube condensing gas boiler, CHS-85 to CHS-399, modulating across about 17,000–399,000 BTU/hr with a 15-year residential warranty.
Estimated Installed Price:
Contact for pricing
Best For
Homes and small buildings that want a stainless condensing boiler sized from a Manual J or heat-loss calculation.
Model: 105-300 MBH
Conventional cast-iron gas steam boilers from 100,000 to 300,000 BTU/hr, rated 80.7–81.3% AFUE, with an optional tankless coil on GXH and GXHA.
Estimated Installed Price:
Contact for pricing
Best For
Replacing an existing gas steam boiler of similar size where near-boiler piping will be redone properly.
Model: 89-358 MBH
A chimney-vented cast-iron oil hot water boiler rated up to 86% AFUE, with an optional tankless coil and a wide range of firing rates.
Estimated Installed Price:
Contact for pricing
Best For
Oil-heated hot water homes replacing an older chimney-vented boiler.
Model: TR-20 to TR-70 (PZ/PZT packaged steam suffix)
A chimney-vented cast-iron oil steam boiler from the Intrepid TR line, up to 86% AFUE, with an optional tankless coil.
Estimated Installed Price:
Contact for pricing
Best For
Oil-fired steam homes that need a like-for-like replacement.
Model: TR-30-60
The Intrepid TR chimney-vented cast-iron oil hot water boiler, up to 86% AFUE, with an optional tankless coil.
Estimated Installed Price:
Contact for pricing
Best For
Oil-heated hot water homes replacing a chimney-vented boiler.
Model: 60-180 MBH
A sealed-combustion cast-iron gas hot water boiler, 60,000–180,000 BTU/hr at 85.1–86.1% AFUE, direct vented with a lifetime limited warranty.
Estimated Installed Price:
Contact for pricing
Best For
Gas homes without a usable chimney that prefer cast iron to a condensing boiler.
Model: J-390C
A 390,000 BTU/hr sealed-combustion condensing gas boiler, about 90.2% thermal efficiency, that can be cascaded up to eight units for commercial loads.
Estimated Installed Price:
Contact for pricing
Best For
Commercial and large multi-family buildings that need cascaded condensing capacity.
Model: 8-40 kW
An electric hot water boiler from 8 to 40 kW (about 27,000–137,000 BTU/hr) with no combustion or venting, for homes without gas or oil.
Estimated Installed Price:
Contact for pricing
Best For
Small homes, additions or sites without gas or oil where electric service can support the load.
Model: S-34-210
A cast-iron gas hot water boiler up to 84.4% AFUE; S models cover 34,000–150,000 BTU/hr, and the SX sizes up to 210,000 are discontinued.
Estimated Installed Price:
Contact for pricing
Best For
Smaller gas hot water homes replacing a chimney-vented boiler.
Model: VSL-160C
A stainless condensing gas combi boiler, 30,000–160,000 BTU/hr at 92% AFUE, with built-in domestic hot water and direct venting.
Estimated Installed Price:
Contact for pricing
Best For
Smaller homes with one or two bathrooms that want heat and hot water from one wall-hung unit.
Model: 250-399 MBH
A conventional cast-iron natural-draft hot water boiler in Slant/Fin's Galaxy family, gas or propane, up to 84% AFUE with a lifetime limited warranty.
Estimated Installed Price:
Contact for pricing
Best For
Homes with hot water baseboard or radiators replacing a chimney-vented gas boiler.
Model: 90-250 MBH
A 316Ti stainless condensing gas boiler in 90–250 MBH sizes at 92% AFUE, cascade-capable, now in Slant/Fin's vintage library.
Estimated Installed Price:
Contact for pricing
Best For
Owners servicing an existing VSL II rather than buying new.
Model: LX-85-150
A sealed-combustion condensing gas boiler in 90, 120 and 150 MBH sizes, 25,000–150,000 BTU/hr, now in Slant/Fin's vintage library.
Estimated Installed Price:
Contact for pricing
Best For
Owners maintaining or repairing an existing Lynx rather than buying new.
*Prices are estimates for Nassau County installations. Actual cost depends on home size, system complexity, and model selection.
Every Slant/Fin model family we track, with efficiency, size range, heat-exchanger warranty and a link to the manufacturer's data. Discontinued lines are flagged so you know what parts and service support to expect. Installed prices depend on your home, so every install is quoted.
| Model | Type | Fuel | AFUE | BTU input | Heat exchanger warranty | Source |
|---|---|---|---|---|---|---|
| Galaxy GXHA | Steam | natural gas/propane | 81.3% | 100k–200k | 10-year limited (steam) | Spec sheet |
|
Lynx
Discontinued
Being verified
|
Condensing | natural gas/propane | 95% | 25k–150k | 15 years | — |
| Sentinel | Hot water | natural gas/propane | 82.3% | 70k–210k | lifetime limited | Spec sheet |
|
Intrepid Direct Vent
Being verified
|
Oil hot water | #2 fuel oil | 87% | 103k–132k | see Slant/Fin cast-iron boiler warranty | Spec sheet |
| Bobcat B-120A/200A | Condensing | natural gas/propane | 93% | 30k–200k | 12-year residential (5-yr full + 7-yr prorated) | Spec sheet |
| CHS-85-399 | Condensing | natural gas/propane | 95% | 17k–399k | 15-year residential limited (includes 5-year Protection Plan) | Spec sheet |
| Galaxy GX/GXH/GXHA | Steam | natural gas/propane | 81.3% | 100k–300k | 10-year limited (steam) | Spec sheet |
|
Intrepid Hot Water
Being verified
|
Oil hot water | #2 fuel oil | 86% | 89k–358k | see Slant/Fin cast-iron boiler warranty | Manufacturer |
|
Intrepid (steam)
Being verified
|
Oil steam | #2 fuel oil | 86% | 105k–469k | see Slant/Fin cast-iron boiler warranty | Spec sheet |
|
Intrepid (water)
Being verified
|
Oil hot water | #2 fuel oil | 86% | 105k–245k | see Slant/Fin cast-iron boiler warranty | Spec sheet |
| Victory VSPH | Hot water | natural gas/propane | 86.1% | 60k–180k | lifetime limited | Spec sheet |
|
Jaguar J-390C
Being verified
|
Condensing | natural gas | 90.2% | 390k | — | Spec sheet |
|
Monitron
Being verified
|
Electric | electric | Not verified | 27k–137k | — | Spec sheet |
| Sentry S-34-210 | Hot water | natural gas/propane | 84.4% | 34k–210k | lifetime limited (verify on certificate) | Spec sheet |
| VSL-160C | Combi | natural gas/propane | 92% | 30k–160k | 15-year residential limited (VSL warranty) | Spec sheet |
|
Galaxy GG
Being verified
|
Hot water | natural gas/propane | 84% | 95k–399k | lifetime limited (hot water models) | Spec sheet |
|
VSL II
Being verified
|
Condensing | natural gas/propane | 92% | 90k–250k | 15-year residential limited (VSL warranty) | Spec sheet |
|
Lynx LX-85-150
Discontinued
Being verified
|
Condensing | natural gas/propane | 95% | 25k–150k | 15-year residential limited (includes 5-year Protection Plan) | Spec sheet |
Estimated installed price: $3,200–$8,000. Estimate only, not a verified quote. Installed price varies with the model, your home and the system type, so every install is quoted.
Home+ services and installs Slant/Fin boilers across Nassau County and western Suffolk. See boiler installation, boiler repair, or compare every brand's lineup.
Understanding what's covered and how to protect your investment.
Parts Warranty
3 years
Covers major components like controls and pumps
Heat Exchanger
15 years (condensing) / Lifetime (cast iron)
The heart of your boiler—cast iron or stainless steel
Labor Coverage
1 year
Manufacturer coverage for service calls
Extended Options
Available through dealer
Additional protection beyond standard warranty
Installed prices for Slant/Fin boilers range from $3,200 to $8,000 in Nassau County. Price varies by model efficiency, home size, and installation complexity.
$3,200 - $4,784
Entry-level models with solid performance
$4,784 - $6,368
Best balance of features and value
$6,368 - $8,000
Top-tier efficiency and features
Standard Installation
New boiler, same location
Steam-to-Hot Water Conversion
Complete system change
Chimney Liner
Required for high-efficiency
Permit & Inspection
Nassau County requirements
* Prices reflect typical installed costs in Nassau County as of September 2026. Actual costs may vary based on home size, system complexity, and local factors.
Recent Google reviews
Recent public reviews from homeowners who hired Home+ Air & Heat.
Bipul Mainali
Long Island, NY · Jan 2026
“They replaced my old, oxidized copper pipes connected to the boiler. The work was completed neatly, and the price was fair.”
Aaron Ramnarine
Long Island, NY · Jan 2026
“These guys do great work and are easy to deal with. I needed some work done on my boiler for the winter and everything was done easily in a timely manner. Will definitely be using them again in the future.”
Matthew Hoosein
Long Island, NY · Jan 2026
“I had a great experience with Homets Air and Heat. My heating system stopped working the other day, and they responded quickly with a clear explanation and prompt repair.”
Lochana Subedi
Hicksville, NY · Jan 2026
“I am a tenant in Hicksville, and when my heat went out during this cold stretch, it was a total emergency. The technician quickly resolved the heating issue.”
Khim Bhattarai
Long Island, NY · Jan 2026
“I hired them to fix my heat as it stopped working. They were quick to diagnose and fix it even during late hours.”
Devendra Bhattarai
Jamaica, NY · Dec 2025
“Heat stopped working in my Jamaica, NY home and these guys came out fast. They explained what was wrong, fixed it the same visit, and were very reasonable.”
Here's where Slant/Fin boilers tend to fit best across Long Island.
Slant/Fin's 95% efficiency at mid-range pricing delivers the best ROI for moderately-sized suburban homes.
Installer Note: These are general guidelines based on our Nassau County experience. Every home is unique—we'll assess your specific heating needs during our free consultation.
See how Slant/Fin compares to other top boiler brands we install in Nassau County.
| Feature |
Current
|
 #1 |
 #4 |
C #8 |
|---|---|---|---|---|
|
Expert Rating
|
4.45/5
|
4.9/5
|
4.65/5
|
4.55/5
|
|
Max Efficiency
|
95%
|
95%
|
96%
|
87%
|
|
Starting Price
|
$3,200+
|
$4,500+
|
$3,800+
|
$2,500+
|
|
Heat Exchanger Warranty
|
15 years (condensing) / Lifetime (cast iron)
|
Lifetime (cast iron)
|
10 years, model-specific limited coverage
|
20 years
|
| Best For | Quiet Operation & Baseboard Expertise | Steam & Cast Iron Reliability | Reliable condensing boiler options across residential applications | Budget-Friendly Cast Iron |
Get a personalized recommendation in 2 minutes
✓ Insured installers • ✓ Free in-home estimates • ✓ Financing available
Quiet Operation & Baseboard Expertise
Slant/Fin strikes an excellent balance between price and performance. With 95% AFUE efficiency and a 15 years (condensing) / Lifetime (cast iron) heat exchanger warranty, it's a smart choice for most Nassau County homes.
Our Rating
4.45/5
Max Efficiency
95% AFUE
Heat Exchanger
15 years (condensing) / Lifetime (cast iron)
Price Range
$3,200-$8,000
— Blake Ruwali, Home+ Air & Heat
Get answers to the most common questions about Slant/Fin boilers for Long Island homes.
Comprehensive guides for boiler installation, repair, and maintenance
Slant/Fin makes these boiler types. Explore our full recommendations:
Free estimate from Nassau County's boiler experts
Installed Price Range:
$3,200 – $8,000
*Includes equipment, labor, and permits
A great boiler installer on Long Island will outperform a premium unit installed poorly. Use the verification checklist and three-estimate worksheet before you sign anything.
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