Howden Fans: Common Questions, Straight Answers

If you've ever stood next to a failed process fan with a production schedule burning up, you know the difference between a brochure and a real specification. This article answers the questions I hear most about Howden fans - plus a few odd searches that keep landing in the same place.

What kind of fan is a Howden fan?

Howden is an engineering manufacturer, not a home-appliance brand. If you are looking for a small exhaust fan, you've landed on a heavy-industry page. Howden designs and builds centrifugal fans, axial fans, blowers, compressors, and heat exchangers. A true Howden fan in the field might be huge, or it might be a compact high-pressure blower. The common thread is that it is engineered for a specific duty: temperature, gas chemistry, pressure, speed, and reliability.

From the outside, an industrial fan looks like a big steel box with a spinning wheel. The reality is that its performance and service life live in the impeller geometry, the materials, the bearing arrangement, and the way it is tested before it ships. That is the first thing to understand: this is not a commodity item.

Is a Howden fan the same as a bathroom fan?

No. A bathroom fan is a light-duty domestic product. Howden does not make bathroom exhaust fans, and if you need one for a small bathroom, this page is not your vendor. That is not an insult - it's a scale question.

I've seen specifications where someone typed 'bathroom fan' into a commercial query and ended up looking at industrial ventilation instead. Those are different machines with different design codes, motor classes, and controls. If you need an extractor fan for a washroom, buy a normal extractor fan. If you are designing ventilation for a large process building or handling hot, corrosive, or explosive gas, talk to someone who handles industrial fans.

Does Howden make fans for commercial recycling plants?

The phrase 'commercial recycling Howden' is ambiguous. If you are asking about recycling collection in a town called Howden, this page will not help. If you are asking whether Howden-type industrial fans are used in recycling and waste processing plants, the answer is yes - in the right application.

Material recovery, plastics recycling, refuse-derived fuel processing, and especially waste-to-energy plants all use large fans and blowers. They move combustion air, handle flue gas, pressurize conveying systems, and ventilate process halls. Those fans are engineered around the gas conditions. A simple fan from a catalog can be a shutdown risk if it is not matched to the duty.

Why do two fans with similar specs cost so differently?

It is tempting to compare industrial fans by impeller diameter, motor power, and airflow. That comparison misses the engineering.

I've quoted replacements where two 'equivalent' fans had a 40 percent price difference. The higher-priced fan had a heavier shaft, a cast impeller with a corrosion allowance, larger bearings, split housing for easier maintenance, and a paint system that matched the site's environment. The cheaper fan met the point on a datasheet but not the life of the plant. If your process cannot afford unplanned downtime, the higher-cost fan is frequently the lower-cost decision.

You don't see this in the first week. You see it after 18 months, when one fan is vibrating. Or after three years, when the impeller has erosion. Or after five years, when the other fan is approaching overhaul. Quality perception is not about looking good - it's about operating without making the customer wait.

How fast can a replacement fan arrive in an emergency?

This is where I've spent a lot of my career. At my company, I've handled more than 200 rush callouts for fans, compressors, and blowers. A 'rush' in this industry usually means a production line stopped, a freezer warming, or a permit window closing. It is not the same as paying for next-day delivery.

One March 2024 call is a good example. A plant's main process fan started showing high vibration on a Thursday. The replacement impeller from the OEM was quoted with a six-week lead time. We found a temporary unit from a rental fleet, had a crew make the ductwork change, and ran at reduced capacity until the balanced replacement arrived by air freight. The plant avoided a full shutdown, but only because the replacement decision was made in the first two hours. My rule after jobs like that: decide quickly, get the exact duty data, and never assume the shortest quote is the fastest.

Does Howden make an incense burner or incinerator fan?

Let me address the search term 'incense burner' because it shows up next to this article's keywords. Howden does not make incense burners. If you need an incense burner, use a proper ceramic or metal burner and put it near an open window or a bathroom fan - not an industrial fan.

Industrial incinerators are another matter. Incinerators and thermal oxidizers operate at high temperatures, and their fans must handle hot gas with particulates. Howden's industrial fans have been applied in combustion and waste-gas processes, but every application needs its own material and thermal study. Never buy a high-temperature fan based on a search result.

Can you put glass in the freezer?

This is a fair question, and it's not as random as it looks on a page about fans. Howden also makes compression equipment used in commercial and industrial refrigeration. In food plants, glass-in-freezer questions come up regularly.

The short answer: at typical freezer temperatures around -18 degrees Celsius, glass won't crack from the cold by itself. It cracks from thermal shock - when a warm glass container goes straight into a low-temperature room. Use tempered glass or borosilicate glass for freezing, leave headspace if you are freezing liquids, and never put warm glass directly into a blast freezer. For commercial processing, choose packaging rated for freezing. A glass break inside a food freezer is a contamination event, and cleanup time is downtime.

So, yes, you can put glass in the freezer if it is made for freezing and you handle the temperature change sensibly. The rest depends on the glass, the product, and the speed of your refrigeration system.

Search queries don't always match equipment applications. But the ones on this page have one thing in common: they are all about matching a machine to a real condition. If you have a question about Howden fans, blowers, refrigeration, or just need to know which fan goes in a bathroom, start with the duty data. That is the only way to get an answer that holds up when the process is running.