A new cast iron radiator is a strong option when you want a free-standing replacement for a steam or hot-water heating system. These five Oswald Supply models share a 19-inch height, 4-tube design, and 4-7/16-inch depth; their main difference is length, from 7 to 28 inches. Choose the 7-inch model for a narrow space, the 14- or 17.5-inch models for a middle-sized footprint, or a 24.5- or 28-inch model when a longer radiator suits the available space. Confirm system and connection requirements before ordering.
| Model | Height | Depth | Length | Best suited for |
|---|---|---|---|---|
| Oswald Supply 7-inch | 19 inches | 4-7/16 inches | 7 inches | Very narrow spaces |
| Oswald Supply 14-inch | 19 inches | 4-7/16 inches | 14 inches | Compact replacement areas |
| Oswald Supply 17.5-inch | 19 inches | 4-7/16 inches | 17.5 inches | Moderate-length footprints |
| Oswald Supply 24.5-inch | 19 inches | 4-7/16 inches | 24.5 inches | Spaces for a longer radiator |
| Oswald Supply 28-inch | 19 inches | 4-7/16 inches | 28 inches | The longest listed footprint |
Oswald Supply 7-Inch Cast Iron Radiator
This 4-tube radiator measures 19 inches high, 4-7/16 inches deep, and 7 inches long. The listing describes it as a free-standing unit for steam or hot-water heating and identifies it as an efficient radiator replacement option. It also notes that cast iron provides very quiet operation.
Best for: Buyers who need the shortest listed model or have limited wall or floor length available. Its 7-inch length makes it the most compact choice in this selection by that dimension. Choose it if the existing heating system and required radiator capacity are appropriate for this size.
Limitation: A short physical length alone does not establish heating output. The listing does not provide output figures or connection measurements, so check those details before treating it as a replacement match.
Oswald Supply 14-Inch Cast Iron Radiator
This 4-tube model is 19 inches high, 4-7/16 inches deep, and 14 inches long. It is listed for steam and hot-water radiator applications and has a free-standing design. Oswald Supply describes it as an efficient replacement option and says its cast-iron construction provides very quiet operation.
Best for: Homeowners looking for a compact radiator that is longer than the 7-inch model but still has a modest footprint. The 14-inch length provides a middle option for a location where a very short unit may not be the desired fit.
Why it was selected: It offers the same listed height, depth, and 4-tube configuration as the other models while providing a distinct length for comparison. Select by measured available space and system requirements rather than length alone.
Limitation: The listing does not state heating capacity or provide connection specifications. Verify these with the seller or a qualified heating professional if replacing an existing radiator.
Oswald Supply 17.5-Inch Cast Iron Radiator
The 17.5-inch model measures 19 inches high and 4-7/16 inches deep. It has four tubes and is listed for both steam and hot-water systems. The product description identifies it as free-standing, calls it an efficient replacement option, and notes the quiet operation associated with its cast-iron construction.
Best for: Buyers whose measured space falls between the 14-inch and 24.5-inch options. It is a useful size to compare when a 14-inch unit seems too short but a longer radiator may not fit the intended location.
Choose this if: You want the middle length among the five models that are longer than 7 inches and shorter than 24.5 inches. The height and depth remain consistent with the other listed products, making length the principal stated size difference.
Limitation: Product information supplied here does not include output, connection type, or installation instructions. Do not assume the radiator will connect directly to existing piping without confirming those specifications.
Oswald Supply 24.5-Inch Cast Iron Radiator
This 4-tube radiator measures 19 inches high, 4-7/16 inches deep, and 24.5 inches long. It is described as suitable for steam or hot-water home heating and has a free-standing installation style. The listing also presents it as an efficient replacement option and says cast iron provides very quiet operation.
Best for: Buyers with room for a longer radiator who want a size between the 17.5-inch and 28-inch models. Measure the intended footprint carefully, including the clearance needed around the unit and piping.
Why it was selected: Its longer dimension gives shoppers another choice within the same product range while the listed height, depth, and tube count match the other options. It can be compared directly by footprint, subject to confirming heating and connection requirements.
Limitation: The supplied product details do not state heat output, weight, or connection dimensions. Those details may be important for sizing, moving, and planning a replacement.
Oswald Supply 28-Inch Cast Iron Radiator
The longest model in this selection is 28 inches long, 19 inches high, and 4-7/16 inches deep. It uses a 4-tube design and is listed for steam or hot-water heating. The product description calls it free-standing and an efficient replacement option, and says cast-iron construction provides very quiet operation.
Best for: Buyers who have space for the longest listed radiator and are comparing options based on footprint. It is the largest choice by length in this group, but that does not by itself confirm that it will provide the right heat for a room.
Choose this if: Your measurements allow for 28 inches of radiator length and the system, output, and connections are confirmed. Compare it with the 24.5-inch version if the available space is close to the required footprint.
Limitation: The listing details provided do not include heating-output figures or connection specifications. Verify both before purchase, especially when replacing an existing unit.
Buying Guide: How To Choose A New Cast Iron Radiator
Which radiator length fits the available space?
Measure the space where the radiator will stand before choosing a model. The listed lengths range from 7 to 28 inches, while all five products share a stated height of 19 inches and depth of 4-7/16 inches. Allow for the actual installation area, nearby trim, furniture, and the piping arrangement. A radiator that fits its nominal footprint may still need additional clearance around its connections.
Compare models by the length that best suits the room, but do not use dimensions as a substitute for heating calculations. The product information supplied does not include heat-output values. If you are replacing an existing radiator, note its size and ask a heating professional or the seller to confirm that the proposed unit is appropriately sized.
Does the radiator match a steam or hot-water system?
Each of these Oswald Supply listings identifies the product for steam and hot-water radiator use. That description does not guarantee that every model will work with every system or connect to existing piping. Steam and hot-water installations can have different system requirements, and the supplied feature information does not list connection sizes or specific installation instructions.
Before ordering, identify your system type and compare the existing radiator’s connection location and measurements with the product information. Ask for clarification if the listing does not provide the details your installation requires. A licensed heating professional can help confirm the replacement choice and installation plan.
What do the listed features tell you?
- Four-tube construction: All five product names identify a 4-tube design.
- Free-standing installation: The feature information describes each model as free-standing.
- Quiet operation: The listings state that cast iron provides very quiet operation.
- Replacement use: Each listing describes the radiator as an efficient replacement option, but no output figures are provided.
- Multiple sizes: The feature text says sizes are available; the five options here differ by listed length.
These statements help compare the products, but they do not answer every sizing or installation question. Confirm details that affect your specific home rather than inferring them from the general feature descriptions.
How should you compare the five models?
Start with the available floor or wall length and rule out models that do not fit. The 7-inch option is the shortest; 14 and 17.5 inches are moderate choices; 24.5 and 28 inches are the longer alternatives. Because height and depth are the same in the provided specifications, length is the clearest stated physical difference among these products.
Next, confirm heat output, connection measurements, and system suitability. A longer radiator is not automatically the better choice for every room, and the product details provided do not establish how much heat any model delivers. Keep a record of the existing radiator’s dimensions and connections to make the comparison more precise.
What should you check before ordering?
- Measure the installation space and compare it with the radiator’s stated height, depth, and length.
- Confirm whether the home uses steam or hot-water heating.
- Request connection measurements and installation details if they are not shown in the listing.
- Check heating output requirements for the room rather than choosing by length alone.
- Plan how the radiator will be moved and positioned; the supplied details do not state product weight.
These checks are especially important for a replacement project. A product can be described for the right general heating system and still require different dimensions or specifications than an existing unit.
Frequently Asked Questions
Are these cast iron radiators listed for steam and hot water?
Yes. The product names and descriptions identify each model for both steam and hot-water radiator applications. Confirm that the specific model’s connections and other requirements match your system before purchase.
What is the shortest model in this selection?
The Oswald Supply model with a 7-inch length is the shortest listed option. It measures 19 inches high and 4-7/16 inches deep.
Do all five models have the same height and depth?
Yes. The supplied product names list each radiator as 19 inches high and 4-7/16 inches deep. Their listed lengths vary from 7 to 28 inches.
Does a longer radiator necessarily provide more heat?
The product information provided does not state heat-output figures, so it is not possible to compare heating capacity from length alone. Verify output requirements with the seller or a heating professional.
Are these radiators described as free-standing?
Yes. The feature information for each model describes it as free-standing. Confirm any placement and piping requirements for your particular installation.
What should I verify before replacing an existing radiator?
Check the heating system type, available space, connection measurements, and required heat output. The supplied listings do not provide all of those specifications, so request missing details before ordering.