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The Heatport H4S 4kW Diesel Heater Kit is available in both 12V and 24V versions, making it a powerful and reliable heating solution for larger caravans, RVs, cabins and off-grid spaces.
Select your required voltage (12V or 24V) before ordering.
The Heatport H4S 4kW Diesel Heater Kit is a reliable heating solution for larger caravans, RVs, cabins and off-grid spaces. Designed for strong heat output, efficient diesel use and dependable 12V/24V operation, it is a great option where a smaller heater may struggle to keep up.
This kit is well suited to larger or poorly insulated spaces and gives you the core components needed for a standard installation. It is a practical choice for anyone wanting fast heat-up, controllable comfort and dependable off-grid warmth.
4kW Heat Output 12 or 24V Operation Full Install Kit Ideal for Large Caravans Off-Grid ReadyA great fit for larger caravans, RVs, cabins and other spaces that need stronger, faster heating.
Designed to deliver dependable warmth while maintaining efficient diesel fuel consumption.
Thermostat control helps maintain a more comfortable interior temperature in changing conditions.
Reliable 12V performance makes this heater well suited to caravans, motorhomes and remote setups.
If you are not sure whether the H4S is the right fit for your caravan, RV or cabin, feel free to get in touch and we can help point you in the right direction.
<12V suits most caravans, RVs and standard mobile battery systems. 24V is commonly used in trucks, buses, marine applications and larger battery bank setups.
The H4S 4kW heater is ideal for larger caravans, RVs, cabins, tiny homes and older or poorly insulated spaces needing stronger heat output.
Fuel tanks are commonly selected separately depending on available space, preferred capacity and installation layout.
These diesel heaters have a higher power draw during startup while the glow plug ignites the fuel (approximately 8–10A for a few minutes on 12V models), then settle to a low running draw of around 0.8–2.5A depending on heat setting. They are very efficient and well suited to caravans, RVs, cabins and off-grid battery systems.
Yes. The H4S is a popular option for split-ducting setups with vents at either end of a caravan, motorhome or cabin.
DIY installation may be possible for experienced users, however professional installation is recommended for fuel, electrical and exhaust safety.
Yes — we can supply a full range of diesel heater accessories including tanks, ducting, vents, exhaust parts and other fittings. If you need extras for your setup, please contact us for advice and pricing.
We get it. You've got a lot of choice when it comes to online retailers.
Here's why we think you should shop with us at The Off Grid Store.
We can deliver to almost anywhere in New Zealand, unfortunately there are a few exceptions such as Chatham Islands and for larger items and Great Barrier Island. Best prices online guaranteed.
30 Day Easy Returns. Not happy with your product, we'll take it back no
questions asked.
Great Service. We pride ourselves on the best service, anywhere.
Your Satisfaction Guaranteed. We handpick our products for quality, we
know you'll love them. But if there is ever something wrong, we'll fix it.
The Heatport H4S 4kW Diesel Heater Kit is available in both 12V and 24V versions, making it a powerful and reliable heating solution for larger caravans, RVs, cabins and off-grid spaces.
Select your required voltage (12V or 24V) before ordering.
The Heatport H4S 4kW Diesel Heater Kit is a reliable heating solution for larger caravans, RVs, cabins and off-grid spaces. Designed for strong heat output, efficient diesel use and dependable 12V/24V operation, it is a great option where a smaller heater may struggle to keep up.
This kit is well suited to larger or poorly insulated spaces and gives you the core components needed for a standard installation. It is a practical choice for anyone wanting fast heat-up, controllable comfort and dependable off-grid warmth.
4kW Heat Output 12 or 24V Operation Full Install Kit Ideal for Large Caravans Off-Grid ReadyA great fit for larger caravans, RVs, cabins and other spaces that need stronger, faster heating.
Designed to deliver dependable warmth while maintaining efficient diesel fuel consumption.
Thermostat control helps maintain a more comfortable interior temperature in changing conditions.
Reliable 12V performance makes this heater well suited to caravans, motorhomes and remote setups.
If you are not sure whether the H4S is the right fit for your caravan, RV or cabin, feel free to get in touch and we can help point you in the right direction.
<12V suits most caravans, RVs and standard mobile battery systems. 24V is commonly used in trucks, buses, marine applications and larger battery bank setups.
The H4S 4kW heater is ideal for larger caravans, RVs, cabins, tiny homes and older or poorly insulated spaces needing stronger heat output.
Fuel tanks are commonly selected separately depending on available space, preferred capacity and installation layout.
These diesel heaters have a higher power draw during startup while the glow plug ignites the fuel (approximately 8–10A for a few minutes on 12V models), then settle to a low running draw of around 0.8–2.5A depending on heat setting. They are very efficient and well suited to caravans, RVs, cabins and off-grid battery systems.
Yes. The H4S is a popular option for split-ducting setups with vents at either end of a caravan, motorhome or cabin.
DIY installation may be possible for experienced users, however professional installation is recommended for fuel, electrical and exhaust safety.
Yes — we can supply a full range of diesel heater accessories including tanks, ducting, vents, exhaust parts and other fittings. If you need extras for your setup, please contact us for advice and pricing.
We get it. You've got a lot of choice when it comes to online retailers.
Here's why we think you should shop with us at The Off Grid Store.
We can deliver to almost anywhere in New Zealand, unfortunately there are a few exceptions such as Chatham Islands and for larger items and Great Barrier Island. Best prices online guaranteed.
30 Day Easy Returns. Not happy with your product, we'll take it back no
questions asked.
Great Service. We pride ourselves on the best service, anywhere.
Your Satisfaction Guaranteed. We handpick our products for quality, we
know you'll love them. But if there is ever something wrong, we'll fix it.
