Best for: Heavy-Duty Cast Iron Durability
Smith Cast Iron Boilers offers steam boilers suitable for Long Island's pre-war homes with radiator systems.
Learn More →Yes — Smith Cast Iron Boilers boilers are a strong value pick. Our editorial score is 3.8/5 based on published efficiency, climate fit, warranty, features, and price positioning. 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 Smith Cast Iron Boilers comparison starts with the exact indoor and outdoor model pairing—not the brand name alone. Home+ Air & Heat can review Smith Cast Iron Boilers 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.
Smith Cast Iron Boilers rates 3.8 out of 5 in our value-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 heavy-duty cast iron durability. 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.
Smith Cast Iron Boilers proves that quality heating doesn't have to break the bank. Here's why we recommend Smith Cast Iron Boilers for homeowners who want reliable performance without the premium price.
25 years heat exchanger warranty shows manufacturer confidence.
Specialized steam boiler options for Long Island's older homes with radiator systems.
Quality performance without the premium price tag.
Proudly designed and manufactured in the United States.
Overall Score
Great For
Not Ideal For
Smith Cast Iron Boilers has manufactured heavy-duty heating equipment since 1935, building a reputation for industrial-grade residential durability. We install Smith in older pre-war homes throughout Hempstead, Freeport, and Roosevelt where existing steam systems demand robust replacements.
The Mills Steam series has become our choice for the most demanding steam applications. Parts availability through Sid Harvey's ensures reasonable repair timelines for this specialty brand. The heavy-duty cast iron sections handle thermal stress that would crack lighter-duty competitors.
Smith excels in pre-war homes with oversized steam radiators requiring high output capacity. Their boilers are built heavier than most residential options, delivering commercial-grade construction at residential pricing. The 25-year heat exchanger warranty reflects their confidence in cast iron longevity.
Our bottom line: Smith Cast Iron delivers industrial-grade durability for demanding steam applications. If your pre-war home has an aging steam system that lesser brands struggle to match, Smith provides the heavy-duty construction required. Budget-friendly pricing combined with exceptional longevity makes them a practical choice for cost-conscious homeowners planning 40+ year lifespans.
— Blake Ruwali, Home+ Air & Heat
Smith Cast Iron Boilers models with published specifications.
This GBX listing needs manufacturer confirmation.
Best for: Readers checking an older GBX designation
View Full DetailsSmith Cast Iron Boilers boiler models with published AFUE, boiler type and typical installed price ranges.
Model: GBX
This GBX listing needs manufacturer confirmation.
Estimated Installed Price:
Contact for pricing
Best For
Readers checking an older GBX designation
Model: GSX
GSX is a gas-fired cast-iron residential steam boiler.
Estimated Installed Price:
Contact for pricing
Best For
Homes retaining gas steam radiators
Model: GVX
This GVX listing could not be matched to a Smith product sheet.
Estimated Installed Price:
Contact for pricing
Best For
Readers checking an older GVX designation
*Prices are estimates for Nassau County installations. Actual cost depends on home size, system complexity, and model selection.
Every Smith Cast Iron Boilers 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 |
|---|---|---|---|---|---|---|
|
GBX
Discontinued
|
Hot water | natural gas/propane | Not verified | — | — | — |
|
GSX
Discontinued
|
Steam | natural gas/propane | Not verified | 89k–288k | — | Spec sheet |
|
GVX
Discontinued
|
Condensing | natural gas/propane | Not verified | — | — | — |
Estimated installed price: $2,600–$6,000. 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 Smith Cast Iron Boilers 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
2 years
Covers major components like controls and pumps
Heat Exchanger
25 years
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 Smith Cast Iron Boilers boilers range from $2,600 to $6,000 in Nassau County. Price varies by model efficiency, home size, and installation complexity.
$2,600 - $3,722
Entry-level models with solid performance
$3,722 - $4,844
Best balance of features and value
$4,844 - $6,000
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 Smith Cast Iron Boilers boilers tend to fit best across Long Island.
Smith Cast Iron Boilers's steam boiler expertise is essential for the cast iron radiators common in pre-1950 South Shore homes.
Smith Cast Iron Boilers's straightforward design and competitive pricing make it ideal for landlords managing multiple properties.
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 Smith Cast Iron Boilers compares to other top boiler brands we install in Nassau County.
| Feature |
SC
Current
|
 #1 |
C #8 |
 #2 |
|---|---|---|---|---|
|
Expert Rating
|
3.75/5
|
4.9/5
|
4.55/5
|
4.85/5
|
|
Max Efficiency
|
86%
|
95%
|
87%
|
95%
|
|
Starting Price
|
$2,600+
|
$4,500+
|
$2,500+
|
$4,000+
|
|
Heat Exchanger Warranty
|
25 years
|
Lifetime (cast iron)
|
20 years
|
Lifetime (cast iron) / 20 years (stainless)
|
| Best For | Heavy-Duty Cast Iron Durability | Steam & Cast Iron Reliability | Budget-Friendly Cast Iron | Residential Hot Water Systems |
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Heavy-Duty Cast Iron Durability
Smith Cast Iron Boilers delivers solid performance at an accessible price point. While it may lack some premium features, it's a reliable choice for budget-conscious homeowners who still want quality American manufacturing.
Our Rating
3.75/5
Max Efficiency
86% AFUE
Heat Exchanger
25 years
Price Range
$2,600-$6,000
— Blake Ruwali, Home+ Air & Heat
Get answers to the most common questions about Smith Cast Iron Boilers boilers for Long Island homes.
Comprehensive guides for boiler installation, repair, and maintenance
Smith Cast Iron Boilers makes these boiler types. Explore our full recommendations:
Free estimate from Nassau County's boiler experts
Installed Price Range:
$2,600 – $6,000
*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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