SKU:STONES-SM-33

HUMM Small 33 lbs 2" - 4" Gray Rounded Olivine Granite Sauna Heater Stones

Name: HUMM Small 33 lbs 2" - 4" Gray Rounded Olivine Granite Sauna Heater Stones
Brand: HUUM
SKU: STONES-SM-33
Price: 63.0 USD
Availability: InStock

$63.00

~~$0.00~~ $63.00

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We recommend to purchase the stones together with a heater. For orders of stones without a heater, a surcharge shipping fee is added at checkout

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33 lbs of 2" - 4" (5-10 cm) of rounded olivine sauna stones. We highly recommend using rounded stones in HUUM heaters to compliment the design and have milder steam. The stones are durable and have high heat capacity.

Choose your stones wisely

Throwing water on the stones is how you regulate heat and steam in the sauna. The shape, size and composition of the stones and the way they are arranged make all the difference. We recommend rounded stones because they provide a milder steam. Thanks to the rounded shape the water can reach inner layers of stones and evaporate gradually instead of evaporating all at once from the top layer. Since they are very visible in HUUM heaters, you need both smaller and bigger stones to avoid big noticeable gaps. We also suggest laying smaller stones and more close together on the top to accumulate the heat better.

What's Included

33 lb box of 2" to 4" (5-10 cm) round Olivine sauna stones

Features

Olivine Diabase Granite sauna stones
Rounded shape to complement heater design
Durable with high-heat capacity
Stones range from 2" to 4" (5-10 cm)

Specifications

Color	Gray
Weight	33.95 lbs
Length	15" (381mm)
Width	11" (280mm)
Height	4" (102mm)
Dimensions	15" L (381 mm) x 11" W (280 mm) x 4" H (102 mm)
Construction Material	Granite
Contains Wood?	Yes
Sell Package Qty & Uom	1; EA
Ship Type	Parcel
Freight Class	70

Warranty

Limited 5-Year Warranty

About HUUM

The team consists of enthusiastic sauna fans who believe in the importance of sauna for health and well-being. All of them grew up in Estonia where it would be hard to imagine not going to the sauna at the end of a busy working week, after a cold winter day or on a nice summer evening in the countryside. Sauna means taking time for yourself, regenerating your body and mind, staying healthy and just feeling good. That is why we think that sauna should be available to everybody and everywhere.

Story of HUUM

3 generations of sauna traditions

The founder of HUUM, Siim Nellis, is actually the third one in his family to produce sauna heaters. His grandfather was a skilled oven-builder with a lot of experience in building sauna stoves and his father is also active in sauna heater production. Siim continues to carry on these traditions, connecting the Estonian sauna building knowledge with modern design and innovative technology.

How the first design sauna heater was born

Sauna heaters have been developed in countries with long sauna traditions without necessarily paying much attention to design. In the search for a more contemporary and efficient design for sauna heaters Siim Nellis turned to the Estonian Academy of Arts in 2011. The product design students of the academy proposed different designs, among which one design stood out. It was inspired by a water drop and had a hemispheric shape. In 2012 the heater was developed for production and it became known as DROP. Unlike other sauna heaters before, DROP had a unique round shape, well-optimized use of metal and an increased stone capacity, which allowed the electric heater to produce a mild steam similar to wood-burning sauna stoves.

In 2015 DROP sauna heater won the prestigious Red Dot Award: Product Design, one of the most important international awards for exceptionally good design. DROP sauna heater was acknowledged for a well-implemented design solution.

Encouraging active and healthy lifestyle

HUUM encourages active and healthy lifestyle by sponsoring sports and being active ourselves. They sponsor HUUM IRONMAN triathlon team which consists of young talented athletes. Another team sponsored by them is the Estonian women’s indoor hockey team Sparta who won the Estonian championship in 2018. Their own staff is currently active in disc golf, with their proudest moment being winning the first place in the Estonian enterprises disc golf tournament in April 2019.

Craftsmanship

Take a peek into our production process and discover how our sauna heaters and remote controls are made.

HUUM products are made entirely in Estonia

HUUM heaters, control units and other products are made entirely in Estonia with the help of different partners. Did you know that the seemingly simple design of our heaters actually requires a quite complex production process? That is why we have partnered up with Estonia’s leading metal work companies to guarantee the best possible quality in each step of the production. Most of the raw materials used in the production, such as stainless steel and electronic components, are imported.

The making of HUUM heaters requires a lot of manual work

Since we got a little creative with our heaters, it isn’t really possible to produce them in fully automated process lines. Getting all the metal rods into the right length, the right thickness and bent in the right shape means a lot of manual work for the metal workers. Our heaters are made of stainless steel and go through shot blasting and acid treatment in order to get their final refined appearance.

Remote controls that are smart on the inside and beautiful on the outside

The innovative electronic solutions of HUUM remote controls and app are the creation of some of the bright minds of our hometown Tartu. It took five years to develop and improve the technology that we currently use. Oshino Electronics Estonia takes care of the production of the remote controls, which come in wooden and different colored plastic cases. The wooden cases are handmade out of thermo-treated ash, giving each one a unique look.

Less packaging is more

We use as little packaging material as possible to reduce unnecessary waste and use recycled materials for our products where possible. For example, the case of the main module of the control unit is made of recycled plastic.

Awards

Estonian Union of Interior Designers Award 2014: People’s choice

Product design award Bruno 2014:Readers choice

Golden Egg 2014: Visual identity bronze egg

Estonian Design Awards 2014: Honorable mention

Frequently Asked Questions

◄ What kind of stones are suitable for HUUM heaters?

A good sauna stone has to accumulate heat, release it slowly and be heat resistant. For this purpose, dense and heavy stones are a good option. We highly recommend using rounded stones in HUUM heaters to compliment the design and have a milder steam.

In our selection we have rounded olivine diabase stones in 2 different size ranges: 3-5 cm and 5-10 cm. Olivine diabase is a really heavy stone, with a density of approximately 3.5 kg/dm3. It is highly valued as a sauna stone for its durability and high heat capacity. Of course, you can also use other types of stones in HUUM heaters, except decorative stones because they can break easily.

◄ Do the stones require preparation before using?

It is a good idea to wash the stones before actually placing them in the heater. This way you can remove the dust and get a healthy steam. Before using them for your first sauna session you should heat them to the normal sauna temperature and let them cool down slowly. Do not throw any water on the stones while you do this. This process is called annealing and it will help to make the stones more durable. After these steps your stones are ready to be used.

◄ How to arrange the stones?

The way the stones are placed in the heater strongly affects the quality of the steam. You should use both bigger and smaller stones to fill the space properly. First, take out all the stones and separate the smaller ones. Then start stacking the stones layer by layer starting from the bottom, working your way up. If you only place stones on one side first, you risk deforming and breaking the heating elements. Start with bigger stones and use smaller ones to fill the rounded parts or areas with less space. Leave enough space between the stones for the air to move and do not place the stones too tightly around the heating elements. At the same time, the heating elements should still be completely covered and not visible. This is important because throwing water on the heating elements is not good for them and it also does not give the best steam. Water should evaporate from the stones and not from the heating elements. Keep stacking the stones and when you reach the top layer, place the stones more tightly – that is where you would want all the heat to accumulate.

◄ When do I need to replace the stones?

Sauna stones do not last forever. With time and frequent use, they eventually start crumbling. That is why every now and then they should be replaced with new stones. A simple way to understand if your sauna stones may need replacing is when you notice that sauna heating takes more time than usual. This may be caused by the smaller stone pieces blocking the air passages between the stones. In any case, you should check your stones once a year or approximately after 300 hours of heating. To do so, you should remove all the stones from your heater and evaluate their condition. You could remove and replace the crumbled ones and then clean the remaining ones. Then again, it might be more convenient to replace all the stones at the same time

◄ How many stones do I need?

This depends on your heater.

View full details

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Shipping & Returns

Order Confirmation:

You will receive a confirmation email as soon as you place your order. After that, we double-check if all items ordered are in stock and available for immediate shipment. If your order is available for the delivery within the advertised time frame, we will submit it for shipment to the warehouse. If the expected delivery time exceeds the advertised time frame, we'll reach out to you via email and/or phone to confirm the order.

Order Shipment:

You will receive an email confirmation with tracking number within 1 business day from the time the item has been shipped. If you would not receive tracking information within 10 business days of your order, feel free to follow up with our customer service team.

Estimated Time of Arrival:

We typically deliver within 2-10 business days. Custom made products are usually delivered within 4-12 weeks. If the expected delivery date for your order would fall outside of the advertised 2-10 business day time frame, our customer service team will reach out to you to confirm if you are OK with that date.

Areas Covered:

All estimated delivery dates and shipping costs advertised on the website apply the the contiguous United States only (the Lower 48 and D.C.). Please contact our customer service team to discuss the time and cost of shipping to Hawaii, Alaska, or the U.S. territories. We don't ship internationally, but we can ship your order to a freight forwarder of your choice.

Damages:

It is critical that you inspect the packaging of all items when they arrive and check if you received all boxes listed on the delivery receipt. If you notice any damage or shortage of packages, you must make a note of it on the bill of lading, take pictures, and refuse delivery. Your note should say "refused due to damage". If there are no damages visible before opening the box, you must note "subject to further inspection may contain concealed damage". By signing a freight delivery without making any notes, you accept the product as it is and release the seller from any liability. If you notice any damage after receiving the delivery, do not throw the box away, and contact us with the photos of all sides of the packaged goods within 2 business days. We cannot process your claim if you fail to send images within 2 business days. After we receive information from you about the refused delivery or concealed damage, we immediately initiate a claim with the shipping company or with the manufacturer. After the claim is fully processed, we ship all replacements at absolutely no cost to you.

Cancellations & Returns:

We can cancel your order at absolutely no cost to you before the shipping label or Bill of Lading has been created, or before production of a custom order has started. Custom made items are not eligible for cancellations or returns after production has started. You can return all non-custom made items within 30 days of delivery, except when noted otherwise on their product page. To be eligible for a return, the item must be unused and in the same condition as you received it. It must also remain in the original packaging, and the packaging must be in perfect resellable condition. The cost of shipping the product both ways (to the customer, and back to the warehouse) will be deducted from the refund. We do not charge additional restocking fees. Orders delivered outside the United States are not eligible for refunds. If your order arrived damaged, "Damages" section applies. Please contact us before returning your order to discuss shipping details. All refunds will be issued to the credit card or payment method that you used for your purchase within 2 days after all returned items arrived at the warehouse.

HUMM Small 33 lbs 2" - 4" Gray Rounded Olivine Granite Sauna Heater Stones