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Inline Duct Heater
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Electrical inline duct heater battery
- Heater For Circular Ducts
- Basic Duct Heater Unit Without Controls
- Integral Overheating Protection
- Please note: These duct heaters have varying lead times – Please contact us for current lead time.
Inline Duct heater with spigot connection for standard spiral ducts. Manufactured from Aluzinc-coated sheet steel with a heating element in stainless steel.
The duct heater has integral overheating protection with a manual reset function with rubber seals on the connecting spigots to reduce air leakage and pressure drop.
Suitable for control by room thermostat or Pulser, the minimum air volume is based on a minimum air velocity of 1.5 m/s.
These inline duct heaters are designed for a maximum output air temperature of 50°C. The ductwork heater units can be installed in a horizontal or vertical duct, in horizontal ductwork the connection box should be installed facing upwards or rotated 90° to one side.
Installation with the connection box facing downwards is not allowed.
| Model | DUCDH100-0.6 |
|---|---|
| QS code | QS33 |
| Product type | Duct Heater |
| Product group | Metal Ducting |
| Round system (mm) | 100 |
| Model | DUCDH125-1.2 |
|---|---|
| QS code | QS9729 |
| Product type | Duct Heater |
| Product group | Metal Ducting |
| Round system (mm) | 125 |
| Model | DUCDH150-1.2 |
|---|---|
| QS code | QS34 |
| Product type | Duct Heater |
| Product group | Metal Ducting |
| Round system (mm) | 150 |
| Model | DUCDH150-2.7 |
|---|---|
| QS code | QS17968 |
| Product type | Duct Heater |
| Product group | Metal Ducting |
| Round system (mm) | 150 |
| Model | DUCDH200-3 |
|---|---|
| QS code | QS9721 |
| Product type | Duct Heater |
| Product group | Metal Ducting |
| Round system (mm) | 200 |
| Model | DUCDH160-2.7 |
|---|---|
| QS code | QS9722 |
| Product type | Duct Heater |
| Product group | Metal Ducting |
| Round system (mm) | 160 |
| Model | DUCDH150-1.2-KIT |
|---|---|
| QS code | QS4353 |
| Product type | Duct Heater |
| Product group | Metal Ducting |
| Round system (mm) | 150 |
| Model | DUCDH315-9-400V/3 |
|---|---|
| QS code | QS9725 |
| Product type | Duct Heater |
| Product group | Metal Ducting |
| Round system (mm) | 315 |
| Model | DUCDH400-9-400V/3 |
|---|---|
| QS code | QS9728 |
| Product type | Duct Heater |
| Product group | Metal Ducting |
| Round system (mm) | 400 |
| Model | DUCDH400-12-400V/3 |
|---|---|
| QS code | QS9727 |
| Product type | Duct Heater |
| Product group | Metal Ducting |
| Round system (mm) | 400 |
| Model | DUCDH355-12-400V/3 |
|---|---|
| QS code | QS9726 |
| Product type | Duct Heater |
| Product group | Metal Ducting |
| Round system (mm) | 355 |
1 review for Inline Duct Heater
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Read our full delivery information
Free Delivery Over £100
For items in stock. Excludes timed and non UK Mainland deliveries.
Cut off time 12:00 (noon)
Orders placed after midday will be shipped the following working day.
Free Delivery Over £100
For items in stock. Excludes timed and non UK Mainland deliveries.
Cut off time 12:00 (noon)
Orders placed after midday will be shipped the following working day.
Product has no documents.
Questions and answers of the customers
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Good afternoon, how is the temp set and controlled on this unit. Also can it be controlled via air flow switch
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QGood afternoon, how is the temp set and controlled on this unit. Also can it be controlled via air flow switchanswer nowA Hello JamesThank you for your question. The duct heater is designed to operate on single phase, two phase or three phase alternating current and comes in a varietyof versions with, or without, built-in control equipment. The duct heater must be connected to the mains supply with a fixed installed round cable. Appropriate cable glands mustbe used to retain the electrical protection class. Duct heater versions CBMF, has a built-in electronic interlocking airflow sensor that ensures that the heating elementswill not actuate, unless there is an appropriate airflow through the duct heater. The electronic interlocking device is set foran airflow limit of approximately 1.5 m/s. The inlet air must be filtered to reduce the risk of contamination of the airflowsensor A multi pole switch must be included in the fixed installation. The installation must be carried out by an authorized electrician. The heater is S-marked, CE-marked, EMC-marked and designed in accordance with the following standards:SEMKO 111 FA 1982 / / EN 61000-6-2. The duct heater is equipped with two overheating cut-outs (of which one is manual reset), to prevent overheating whenthe airflow is too low or in case of a fault in the system. A drawing must be attached inside the fuse box or on the wall of the service room. The drawing shows the rating of theduct heater and its location in the building, together with information about the measures to be taken if the overheatingcut-outs is activated.10. Since the sensor circuitry, for heaters type CBM and CBMF, is not galvanic separated from the power supply, care must betaken when the sensor are connected due to the mains voltage level.11.. Duct heater versions CB and CBM, EN 60335-1 / EN 60335-2-30 / EN 61000-6-3 / EN 61000-3 This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of theappliance by a person responsible for their safety. Furthermore, it must notbe possible to switch off the associated fan unless the power supply to the heater has been turned off in advance or turnedoff at the same time. The air speed through the heater must be at least 1.5 m/I hope this has answered your questions but if you require any further help please do not hesitate to come back to meKind RegardsAnita
Hi,
I have contacted you before hopefully i can now give you more info.
I have an area to heat, i want to use the heater above (there will be three independant) i want three phase to try and balance the load more effectively. Basically i want to mount the heater in a duct (near the output end) and then mount the fan further back, can you advise on which fan i should use, does there have to be an interlock between the fan and the heater in case the fan fails? can i use a standard room stat via a contactor for control?
What is the best output spigot to put on the end.
Thankyou
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QHi, I have contacted you before hopefully i can now give you more info. I have an area to heat, i want to use the heater above (there will be three independant) i want three phase to try and balance the load more effectively. Basically i want to mount the heater in a duct (near the output end) and then mount the fan further back, can you advise on which fan i should use, does there have to be an interlock between the fan and the heater in case the fan fails? can i use a standard room stat via a contactor for control? What is the best output spigot to put on the end. Thankyouanswer nowA Hello DavidThank you for your question. Please see below the manufacturers number to give them a call as they will be able to advise you further. Systemair: 01634 295724.
What duct fan would you recommend for this duct heater.
I have a 22mtr x 12 mtr garage to heat would these be suitable and would three independantly controlled units ba sufficient. Is there a minimum/maximum length of duct?
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QWhat duct fan would you recommend for this duct heater. I have a 22mtr x 12 mtr garage to heat would these be suitable and would three independantly controlled units ba sufficient. Is there a minimum/maximum length of duct?answer nowA Hi David. The fan would be needs to be the same size as the ducting. As you have chosen a 315mm Duct Heater, you would need a 315mm fan, however, the one you chose was 3phase. Do you have single or 2 phase electrics?a 315mm single phase mixed flow fan can cope with 5m of straight ducting, if the ducting is going to be longer, then you need a centrifugal fan possibly. We would need to know some more information to give you an accurate answer.Kind regards, Marc.
hello ...... i have the humidistat controller with my kalahari unit(kwh 150) and was just wondering would the thermostat that comes with the heater replace this....thank you
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Qhello ...... i have the humidistat controller with my kalahari unit(kwh 150) and was just wondering would the thermostat that comes with the heater replace this....thank youanswer nowA Hello GaryThank you for your question. The thermostat that comes with the heater kit will only control the heater not the Kalahari unit. If we can help any further please do not hesitate to contact usKind RegardsAnita
Only the picture of the three images available loads in Google, what are the physical sizes of this unit?
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QOnly the picture of the three images available loads in Google, what are the physical sizes of this unit?answer nowA Hello JohnThank you for your question. I will send you the dimensions on a separate e-mail. Kind RegardsAnita
Hi we have spiral ducting in a upstairs room which is approximately 15mx8m would this heater be ok for this
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QHi we have spiral ducting in a upstairs room which is approximately 15mx8m would this heater be ok for thisanswer nowA Hello CraigThank you for your question. To help you further please can you advise what your application is please. Kind RegardsAnita
Is this model suitable for a bathroom of around 9 sqr mtrs?
Is the motor considered noisy for such application?
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QIs this model suitable for a bathroom of around 9 sqr mtrs? Is the motor considered noisy for such application?answer nowA Hello JosephThe product to which you are referring is a duct heater designed to warm air as it passes through an air input duct of a ventilation system. We would not recommend this is used for a bathroom as we do not recommend input or supply air to bathrooms as they should have extraction for the dispersal of water vapour.
Hi there, what temperature increase could I expect from a heater this size if I was pulling 2, 000CFM of air through it?
Thank you!
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QHi there, what temperature increase could I expect from a heater this size if I was pulling 2, 000CFM of air through it? Thank you!answer nowA Hello WesThank you for your question. These duct heaters are designed for a maximum output air temperature of 50°C. I hope this helps.Kind RegardsAnita
Tight installation - what are the overall dimensions, please?
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A Hello DouglasThank you for your question. The measurements for the heater are below. If I can help any further please do not hesitate to contact me.Overall measurement is 375mm from end to end of the box the measurement is 278mm and the spigot width is 42mmKind RegardsAnita
Hi. Im also interested into buying one duct heater. Yet, Id like to have information on how to control it with a thermostat (no kit). Can you help me please ?
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QHi. Im also interested into buying one duct heater. Yet, Id like to have information on how to control it with a thermostat (no kit). Can you help me please ?answer nowA Hello ValentinThere is a thermostat and ducting kit available (search QS4353)We also have a datasheet with the various sized heaters and the relevant thermostat controllers, however this format will not allow the attachment so I will forward in a separate e-mail
Please call me. We want to heat the air in our paint booth and are hoping that this duct heater is the way to go
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QPlease call me. We want to heat the air in our paint booth and are hoping that this duct heater is the way to goanswer nowA Hi Jonathan I called Friday and have left a message with a return number 07956 818138
Is there a maximum room size this heater is suited to. You advise this is not suitable for plastic ducting however can we fit this if the ducting after the heater element is metal ?
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QIs there a maximum room size this heater is suited to. You advise this is not suitable for plastic ducting however can we fit this if the ducting after the heater element is metal ?answer nowA Hello Jason The heater is designed for metal spiral ducting. The suitability for the room size is determined by the air movement capability of the fan that is to be installed and how many air changes are necessary, this is largely determined by the 125mm duct size. In effect, if the ventilation required for a particular room can be fulfilled by a 125mm in-line fan, then this 125mm in-line heater will be compatible.
Good Afternoon,
Please can you email across the technical information for this product at your earliest convenience, and importantly the product dimensions? I cant seem to access the PDFs on the website.
Many thanks for your help
Kind regards
Sonia
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QGood Afternoon, Please can you email across the technical information for this product at your earliest convenience, and importantly the product dimensions? I cant seem to access the PDFs on the website. Many thanks for your help Kind regards Soniaanswer nowA Hello SoniaThank you for your inquiry. I will send you the information on a separate e-mail.Kind RegardsAnita
Hello - Are duct heaters suitable for use with your plastic ducting? Thank you for your previous quick and helpful replies!
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QHello - Are duct heaters suitable for use with your plastic ducting? Thank you for your previous quick and helpful replies!answer nowA Hello Richard The duct heater can not be used with plastic ducting as they designed for a maximum output air temperature of 50°C. If I can help any further please do not hesitate to contact me Kind Regards Anita
Hello - What do I need to buy to control the duct heater in the loft from a downstairs room?
What additional cost would this be?
Thank you!
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QHello - What do I need to buy to control the duct heater in the loft from a downstairs room? What additional cost would this be? Thank you!answer nowA Hello Richard Thank you for your question. There is a controller for this product the price for this item is £120.00+vat and one was in stock at time of inquiry. If this item does go out of stock then there will be a 2-3wk lead time. There is a duct heater kit comprising duct heater, room sensor, and duct the product code for this item is QS38774. If I can help any further please do not hesitate to contact me Kind Regards Anita
Hi please could you confirm how this can be controlled to maintain a room temp when using in an mvhr installation
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QHi please could you confirm how this can be controlled to maintain a room temp when using in an mvhr installationanswer nowA Hi BenThis item is available as a kit with its thermostat and can be found by entering QS4353 into the quick search bar.
Hi. Please advise on above (on MVHR). Presumably just put into live feed to heater? Thanks, Peter F (recent customer)
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QHi. Please advise on above (on MVHR). Presumably just put into live feed to heater? Thanks, Peter F (recent customer)answer nowA Hi Peter, Please see these Wiring Diagrams for the inline duct heater. It should point you in the right direction.Also, please note that you should always get a qualified electrician for fitting and wiring electrical units.Hope that helps!
Is it possible to get the dimensions for the 2.7kw 150mm inline duct heater (DUCDH150-2.7)
Many thanks
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QIs it possible to get the dimensions for the 2.7kw 150mm inline duct heater (DUCDH150-2.7) Many thanksanswer nowA Hi Aaron, Here are the Dimensions Picture.Hope that helps!
Would this heater be suitable in a domestic situation. Bathroom approx. 50 cubic metres.
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QWould this heater be suitable in a domestic situation. Bathroom approx. 50 cubic metres.answer nowA Hello Harry Thank you for your question. For me to advise please could you tell me what your application is please. Kind Regards Anita 0208 463 9683
Can you suggest suitable thermostat/controller which will work with this unit? DUCDH100-0.6-KIT is not an option for me due to price
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QCan you suggest suitable thermostat/controller which will work with this unit? DUCDH100-0.6-KIT is not an option for me due to priceanswer nowA Hello Lukasz Thank you for your question. We do a 100mm 600watt heater battery kit which includes the heater battery the controller and sensors. The product code for you to have a look is QS38773.
Hi, can you supply suitable controls/thermostats for these?
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A Hello Vidas, A version of this item with included control/thermostats can be found here: DUCDH100-0.6-KITWith kind regards, Michael
Hi. Am intertested in getting one of these for my MVHR system. Can you provide any information on how they can be controlled by a room thermostat.
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QHi. Am intertested in getting one of these for my MVHR system. Can you provide any information on how they can be controlled by a room thermostat.answer nowA Hello Jeff I will be sending you a separate e-mail in response to your question.
Robert Talbot (verified owner) –
Systemair (Nuaire) component, competitively priced. Does not included integrated air flow permissive switch.