Frequently Asked Questions

>Order & Costs

What are the costs of a Groundfridge

You can purchase your very own Groundfridge for €15.900,00 including Dutch VAT (that’s 21%) excluding costs for transportation and installation.

Do I need a permit?

Great news: probably not. Just to be sure, we recommend you check with your local council. As a buyer, it’s your responsibility to arrange a permit in time (when needed).

Is Groundfridge available in different colors?

Groundfridge is currently available in white (RAL 9002). This color ensures your Groundfridge is well-lit, as it reflects light. The door is green (RAL 6021), blending in with natural surroundings.

Is it possible to ship my Groundfridge? And how much does this cost?

The Groundfridge fits in a sea container or a truck and can be shipped. For now we will only deliver in Europe.

Is there a maximum of Groundfridges I can order?

We would like to ask you to order one Groundfridge per address. Do you need more
Groundfridges, or are you working on a business-related project with specific needs?
Just contact us.

How can I order my Groundfridge?

Easy! Just fill in the form and request a quotation. We’ll send you a personalized quotation including the expected delivery time. After your first payment, the reservation will be final.

When will Groundfridge be available in my country?

Groundfridge is available on the entire planet.

What is the delivery time of my Groundfridge?

Delivery takes approximately eight weeks. You’ll find the expected delivery date indicated in your quotation.

>Technical properties

What materials have been used?

Groundfridge is made out of fiber-reinforced composite. The door is also made of fiber-reinforced composite with a layer of premium-quality foam insulation and has stainless steel hinges and door fittings. The shelving inside your Groundfridge is made of uncoated waterproof plywood (21 mm). 

What do people use Groundfridge for?

You can use Groundfridge to cool anything, but it’s especially great for fresh products such as vegetables, fruits (maybe from your garden?), wine, cheese and groceries… Surprise us with your ideas! View some options.

How sustainable is a Groundfridge?

Groundfridge is 100% powered by nature. Even the ventilator is solar-powered!

Which plants can I put on my Groundfridge?

Vegetation will have a positive effect on the temperature in your Groundfridge. Big-leaved plants and bushes reduce heat. Don’t opt for invasive vegetation such as Japanese knotweed. 

Which vegetation can I place on top of my Groundfridge?

We recommend local plants and trees that can withstand drought and provide plenty of shade, such as grasses. The right vegetation protects the soil from sunlight and high temperatures.

How do I take care of my Groundfridge?

The only thing you have to do is keep your Groundfridge fresh and clean. It doesn’t need any maintenance. If you like, you can paint the wooden shelves.

Can I influence the temperature in my Groundfridge?

We recommend that you locate your Groundfridge in a darker area. You can also cover its mound with plants to reduce heat exposure. What’s more, your Groundfridge is fitted with a ventilator.

How deep should the Groundfridge be placed?

You’ll need to dig a 2.20-meter-deep hole of 2.5 x 2.5 meters. You can find more information in the Installation Manual.

How does ventilation work?

Your Groundfridge is fitted with a ventilator. You can set ventilation times to your desired specifications. Night venting reduces the temperature. We recommend venting your Groundfridge at least one full hour every twenty-four hours.

What is the capacity?

The total volume of Groundfridge is 7.82 m3. It stores a whopping 3,000 liters. This is more or less the harvest of a 250 m2 vegetable garden. Make sure not to stack its shelves with more than 500 kg!

How can I lock the door?

The door has a padlock option and can be opened from the inside and outside. This option will accommodate most regular padlocks. A padlock is not included with your Groundfridge.

What is the temperature inside my Groundfridge?

The temperature inside your Groundfridge will approximately match the temperature of one meter below ground. The temperature is affected by local factors such as soil type, groundwater levels, exposure to sunlight, mound vegetation and the outside temperature. The average temperature of a Groundfridge in the Netherlands fluctuates
between 8 and 15 degrees Celcius.

What are the dimensions and weight of the Groundfridge?

You can find all dimensions (and more specs!) > here.

>Delivery and installation

How much weight is allowed on top of a Groundfridge?

The layer of soil covering your Groundfridge should not be more than 1.5 meters. Make sure to disperse the soil evenly. Do not plant any trees or place objects near or on top of your Groundfridge that may lead to a load of over 50 kg/m2. Never stand on top of your Groundfridge with more than two adults.

Which soil types are best for Groundfridge?

Any soil type works fine. We can determine the exact techniques, materials and costs by investigating your exact location. Do you have a question about this? Contact us.

The groundwater level on my terrain is pretty high. Can I still install a Groundfridge?

Groundwater cools your Groundfridge, so a high groundwater level is great. It might require some special attention during installation. Contact us for advice.

How much soil should I cover my Groundfridge with?

It’s simple: dig out the hole, install your Groundfridge and place the soil on top. Your Groundfridge needs to be covered by a layer of 1 to 1.5 meters. You might need some extra soil to achieve this. Make sure to disperse the soil evenly. For extra support, we recommend adding one cubic meter of white sand in the hole before placing the Groundfridge.

Which crane is required for lifting a Groundfridge?

To lift your Groundfridge, you’ll need a mobile crane capable of lifting at least 10 t. Your Groundfridge has handy hoisting lugs. Do not relocate or lift your Groundfridge before taking all of its contents and interior shelving out first.

How much space do I need?

Your Groundfride has a diameter of 228 cm. In total, you’ll need a diameter of 5 meters.

Can I place the Groundfridge manually?

You certainly can! It takes a bit longer but you make less impact on the environment by digging a precise hole. The Groundfridges weight is 300 kg.

How do delivery and installation work and what are the costs?

Delivery and installation of your Groundfridge are not included in the purchase price. Our instructions will help you out. Don’t forget to consult the Installation Manual as well! If you would like some help, we can connect you to a third party who’s experienced in installing Groundfridges.

>Returns and warranty

Returns and warranty

Groundfridge comes with a two-year warranty. This warranty covers the casing, door, door fittings, shelving and all other non-electrical components. You can find more information about warranties and return here.

>Cooperation and exhibitions

Can we collaborate on a project?

We love to cooperate. Surprise us with your proposal!

Groundfridge available for exhibitions?

We love to participate in exhibitions. So very much a yes, depending on availability and your location. Get in touch and we’ll do our best to work something out.