Cast iron radiators can be a suitable replacement choice for compatible steam or hot-water heating systems, and the five Oswald Supply models below differ mainly in height and length. The 14-inch model is a compact option, while the 24.5-inch model offers the longest listed body. All five are described as free-standing, quiet-operating radiators and are presented as replacement options. Before choosing one, confirm the radiator’s dimensions and connection requirements with a qualified heating professional.
| Product | Height | Length | Best suited for |
|---|---|---|---|
| Oswald Supply 14-Inch | 19 inches | 14 inches | Shorter available radiator body |
| Oswald Supply 24.5-Inch | 19 inches | 24.5 inches | Longest listed body |
| Oswald Supply 17.5-Inch | 19 inches | 17.5 inches | Middle-length option |
| Oswald Supply 7-Inch, 19-Inch Height | 19 inches | 7 inches | Very short listed body |
| Oswald Supply 7-Inch, 25-Inch Height | 25 inches | 7 inches | Short body with greater height |
Oswald Supply 19-Inch-High, 14-Inch-Long Radiator
This four-tube Oswald Supply radiator measures 19 inches high, 4-7/16 inches deep, and 14 inches long. The product listing identifies it for steam or hot-water heating and describes it as a free-standing replacement option. The listed features also note quiet operation from its cast-iron construction.
Best for: Buyers looking for a 19-inch-high radiator with a shorter 14-inch body. Compared with the 17.5- and 24.5-inch models, its listed length may be a better fit when the available space is limited. It was selected because it offers the same stated system types and general features as the other models in a distinct size.
Check before choosing: The listing does not provide room-heating output or connection details in the supplied information. Confirm that this model’s dimensions, connections, and heating capacity are appropriate for the existing system and room.
Oswald Supply 19-Inch-High, 24.5-Inch-Long Radiator
This four-tube model measures 19 inches high, 4-7/16 inches deep, and 24.5 inches long. It is listed for steam and hot-water applications. Oswald Supply describes the unit as free-standing and as an efficient replacement option, and notes that cast iron provides quiet operation.
Best for: Buyers who have room for the longest listed radiator body among these five options. Its 24.5-inch length distinguishes it from the 7-, 14-, and 17.5-inch models. It may be worth comparing when a replacement needs a longer radiator footprint, but length alone does not establish heating output.
Check before choosing: This model takes more linear floor or wall space than the other listed options. Measure the installation area and verify the heating system’s requirements rather than choosing by size alone.
Oswald Supply 19-Inch-High, 17.5-Inch-Long Radiator
At 19 inches high, 4-7/16 inches deep, and 17.5 inches long, this four-tube radiator sits between the 14- and 24.5-inch models in listed length. The product is described for both steam and hot-water heating, as a free-standing unit, and as a quiet-operating replacement option.
Best for: Buyers comparing a mid-length radiator body with other 19-inch-high choices. It offers a length between the compact 14-inch model and the larger 24.5-inch version. It was selected to give shoppers a size option that may better match an existing space without changing the listed height.
Check before choosing: The supplied features do not state the radiator’s heat output, connection dimensions, or installation instructions. Confirm these details with the seller or a heating professional before replacing an existing unit.
Oswald Supply 19-Inch-High, 7-Inch-Long Radiator
This four-tube radiator measures 19 inches high, 4-7/16 inches deep, and 7 inches long. Like the other models, it is listed for steam or hot-water heating and described as free-standing. The manufacturer’s supplied feature notes identify it as a replacement option and cite quiet operation associated with cast iron.
Best for: Buyers whose available installation space calls for the shortest listed body while retaining a 19-inch height. Its dimensions make it the smallest option by listed length in this selection, which can be useful when comparing possible replacement footprints.
Check before choosing: A compact length does not indicate whether the radiator can provide enough heat for a particular room. The provided product details do not specify output, so verify capacity and system fit before purchase.
Oswald Supply 25-Inch-High, 7-Inch-Long Radiator
This four-tube model is 25 inches high, 4-7/16 inches deep, and 7 inches long. It is the only product in this group listed at 25 inches high; the other four measure 19 inches. The listing describes it as suitable for steam or hot-water heating, free-standing, and a quiet-operating replacement option.
Best for: Buyers comparing a taller radiator with a short 7-inch body. It may be the relevant option when the listed 19-inch height of the other models does not match the space or replacement requirements.
Check before choosing: Its greater height means it should not be treated as a direct dimensional substitute for the 19-inch models. Check vertical clearance, connections, and system suitability before selecting it.
Buying Guide: How To Choose A Cast Iron Radiator
Which dimensions should you measure?
Measure the available height, length, and depth before comparing products. The five models here are all listed as 4-7/16 inches deep, but their heights and lengths vary. Four are 19 inches high, while one is 25 inches high. Listed lengths range from 7 to 24.5 inches.
Measure the existing radiator as well as the space around it. Pay attention to nearby walls, trim, furniture, and any pipework that could affect placement. A radiator that fits its floor footprint may still be unsuitable if its height or connection location does not match the installation.
Should you choose by length alone?
No. Length is a useful way to narrow down choices, but it does not establish a radiator’s heating capacity. The product details supplied for these models do not list heat output. Ask the seller or a heating professional for the output information needed for your room and system before treating one size as equivalent to another.
The 7-inch models have the shortest listed bodies, the 14- and 17.5-inch versions provide intermediate lengths, and the 24.5-inch model is the longest. Use those dimensions to compare fit, then confirm performance separately.
Does the radiator match your heating system?
Each product is described as a steam radiator and a hot-water radiator. That description does not confirm that a particular unit will work with every steam or hydronic installation. Existing systems can have different connection and operating requirements. Verify the system type and the radiator’s connection details before ordering.
If replacing an existing radiator, document its dimensions and connections. A qualified heating professional can help determine whether a replacement is suitable and whether any installation changes are required.
What does free-standing mean for installation?
The supplied product features describe each model as free-standing. This identifies the listed installation style, but it does not provide complete installation instructions or confirm that no other work is needed. Do not assume that a free-standing unit will connect directly to existing piping without checking its fittings and placement requirements.
Cast iron radiators are heavy compared with many lightweight heating products. Plan how the unit will be moved and positioned, and seek professional assistance if needed. The product information provided here does not give a specific weight for any model.
How should you compare quiet operation and efficiency claims?
The supplied feature notes state that cast iron provides very quiet operation and describe each radiator as an efficient replacement option. These are general product descriptions, not a model-by-model test or a guarantee of lower energy use. Actual heating performance depends on the radiator’s suitability for the system and the room.
For a fair comparison, ask for specific output and operating information instead of relying only on broad efficiency wording. Consider quiet operation as a stated feature, but verify all technical details that matter to your installation.
Which model is the closest size match?
Start with the existing unit’s height and length. If the current radiator is 19 inches high, compare the four models with that listed height and choose a length only after checking capacity and connections. If the required height is closer to 25 inches, compare the 25-inch-high, 7-inch-long option and confirm that its footprint and connections suit the space.
These five products share several listed characteristics, so their primary stated differences are dimensions. The best match is not necessarily the longest or tallest radiator; it is the model that meets the verified space, system, and heat-output requirements.
Frequently Asked Questions
Are these radiators listed for steam or hot-water systems?
All five product descriptions identify the radiators for both steam and hot-water heating. Confirm the specific model’s connection and operating requirements with the seller or a qualified professional before installation.
Which model has the shortest listed length?
Two models are listed at 7 inches long: the 19-inch-high version and the 25-inch-high version. Choose between them based on required height and verified system fit.
Which radiator is the longest in this selection?
The Oswald Supply model measuring 19 inches high and 24.5 inches long has the longest listed body among these five options.
Are all five radiators the same height?
No. Four are listed as 19 inches high. The remaining model is 25 inches high and 7 inches long.
Do the product details provide heating output?
No heating-output figures are included in the supplied product information. Ask the seller or a heating professional to confirm capacity for the room and system before buying.
Are the models described as quiet?
Yes. The supplied feature notes state that cast iron provides very quiet operation. The information does not include a measured sound level or comparative test results.