Advantages And Disadvantages Of Wood Gasification Boilers

The hike in the price of fossil fuels and oil, has led to many homemakers turning to alternative options of warming their households that are economical. People these days are increasingly investing their money in buying the wood pellet boiler. A relatively new and innovative solution is wood pellet heating that comprises an array of boilers and stoves for your house.
The use of this type of wood gasification boiler saves a lot of money, and the cost is less than other boilers used in the market. Hence, it is one of the cost-effective ways of heating our houses. However, with every heating system, you will find numerous benefits and drawbacks, and the wood hydronic is no exception to this rule.
This article gives us an overview of the advantages and disadvantages of wood pellet boiler and is stated below:
A cost-effective option: It is composed of leftover materials of the wood, and it has an economically competitive price when compared to the other fuel sources that are used for heating purposes. Since the cost of wood pallet does not vary according to the exogenous factors, hence the price remains stable. Hence this cost-effective option saves a lot of money and is one of the most bought heating products.
Environmentally friendly and smaller in size: The wood pellet can be easily stored because they are fed using an automatic system.  As they are sustainable sources of resources, they do not produce emissions of carbon dioxide that is harmful to the environment. They produce a minimal quantity of ash when they are burned.
Energy-Efficient Resource: A minimal input by the user is required as most of them have a self-cleaning mechanism.
Supports local Economies: Since the wood pellets are produced by locals, they support the local economies by providing more jobs to localities that can result in the independence of energy.
Need regular maintenance: As mentioned, a vast majority of boilers have self-cleaning systems; however; to retain the higher working proficiency, it is mandatory to brush the heat exchanger to keep it clean. In addition to cleaning heat exchanger, ash bins should be emptied regularly.
Requires larger space for storage: Although wood pellet boilers are budget-friendly and give you a pinch in your pocket; however, you should remember you need to store them somewhere after buying it. They usually consume larger space and will need at least a 200 cubic ft room to be stored properly.
Initial Price: The initial price of wood pellet boiler is quite higher compared to the traditional oil boilers, combi boilers and traditional gas.  Although the initial cost can be high, it is relatively difficult to calculate the final price because it depends on several factors like wood fuel type and size.

By reading this article, you will have a fair idea about the pros and cons of wood pellet boilers, and it will help you to decide whether this option is the best option for your home.

5 Tips for Maintaining a Wood Gasification Boiler You Must Follow

When it’s bitter and too much cold outside then, nothing strikes the glowing crackle and light of wood fire from the inside fireplace. Supporting your furnace frequently will guarantee that it functions in the most reliable, most effective practice desirable.


Normal hydronic safety valves are to be fitted as well as suitable expansion capability. Therefore a wood log safety flush valve, a 3 BAR pressure relief valve [PRV] and a quality air dirt remover.

Routine cleaning should be continued

You must brush out your KK Series gasification boiler. Do this AFTER moving the heat exchanger handle back & forth a few times. Dust in the galleries will drop into the lower chamber. Brush & vacuum the two chambers.

Check the quality of the wood

Hardwood serves as the most fitting fuel for your wood hydronic boiler Such as ash, oak, beech, and maple; these hardwoods require better treatment before their use. Managing the hardwood will need you to slice the wood and later divide and concentrate it throughout a year. In the end, you can access the quality of the woods, which you are going to burn. Also, mind that you should have a proper shed to keep the woods.

Servicing of your boiler

Servicing your boiler annually will ensure it keeps running optimally for as long as possible. Read the user guide for details, if unsure ring Kroll on 1800 805 243. As a rule, it is good to service your boiler in September or October so that it is ready for heavy use during autumn and winter.

Bleed the radiators

After you switch to the boiler, make sure you keep them running. Radiators heat up very immediately; this happens just because of the air run in radiators. To make sure to touch the radiator, you will also see that the bottom is hot.

You can resolve the issue with these consequent steps:-

  • Take a rag and the key of the radiator.

  • Wrap the carpeting, and utilize a container in fact if there is a leakage.

  • valve key utilization and

  • Using the valve key, implant, and apply smoothly counter-clockwise.

  • Mind the hissing sound, which shows the air escape from the radiator.

  • clean the extra water

  • Transform the radiator key to secure the valve

  • To verify whether the bottom of the radiator is hot or not.

5 Practices for Maintaining Wood Gasification Boilers

Wood is the most convenient source of energy. It can be used to harvest when necessary and obviously could be stored easily. Wood contains moisture. However, lower the moisture, greater is the efficiency. A good gasification boiler is, however, the most efficient methods to be adopted for homes. An important thing to be kept in mind is that the moisture content in your wood which would further be used for gasification boilers

What is Gasification?

The method of extraction of energy from organic materials such as wood is known as gasification. When organic material like wood is put to usage then the process owns the name of wood gasificationIn the process of wood gasification, the wood is converted into carbon monoxide and hydrogen by the reaction of raw material at a high temperature.The inferred gas is a synthetic kind of gas which is more efficient than the direct combustion of the original fuel because it combusted at high temperatures.

An authentic gasification boiler consists of the following:

  • Control unit

  • Fuel chamber

  • Bottom Door

  • Primary Air Duct

  • Ash Chamber

  • Damper

  • Supply Line

  • Return Line

  • Chimney Neck

  • Fuel Chamber Neck

  • Ceramic Nozzle with secondary air duct

  • Exhaust gas heat exchanger

After a briefing about wood gasification and gasification boilers, it is equally important to have the right kind of knowledge regarding the maintenance of wood gasification boilers. Just like rainwater harvesting, it too requires practice to retain its usage and condition as every object wears away with time if not taken care of.

 The Practices required to maintain Wood Gasification Boilers:

  • To maintain a biomass boiler one has to keep a check on the cleaning routine of the biomass boiler. A recommendation is to follow the instructions dictated by the manufacturer as wood gasification boilers vary from non-self-cleaning to the automated ones. So, it is really important to know about the procedures for cleaning. Good quality wood fuel produces less ash but it too needs cleaning as well to make it function at a proper rate. Proper cleaning ensures longevity.

  • If you want your wood gasification boiler to function efficiently then it should be maintained at regular intervals.A wood gasification boiler requires maintenance once a year but it is recommended to maintain it on a monthly basis even on an hourly basis.

  • In order to make the wood gasification boiler work properly, the choice of the right fuel is something which should be done first. Fuel with low moisture content should be preferred as it produces less ash, maintaining the proper function.

  • Typically, for a precise measure, a sieve or shifter is needed to determine particle size. The size of the particle should be inspected carefully.

  • Last but not the least in terms of the importance that a wood gasification boiler should be technologically advanced so that it functions properly and maintenance becomes affordable as well.

Here are certain points which should be kept in mind before choosing the right wood gasification boilers and the necessary measures which are needed to be carried out in order to make it function properly.

Regular Maintenance Tips for Wood Gasification Boiler

A wood boiler is hard to maintain. This article has tips for you that will help you maintain your wood boiler to make sure it is in great shape. Wood Gasification boiler requires the right operation as well as constant maintenance. Following are some tips that will help you in ensuring the smooth working of the boiler without having to compromise on your water heating system in your house.

  • Right Fueling

Hardwood acts as the best fuel for your boiler. Hardwoods such as ash, hickory, oak, beech, and maple are the best out of all the hardwoods available. However, these hardwoods need to be treated before their usage. Treating the hardwood will require you to cut the wood and then split and dry it for around a year’s time. The cracks in the ends will tell you the quality of the wood you’re using to burn. Make sure you store this wood in a shed.

  • Normal cleaning

You ought to never disregard cleaning your gasification boiler. You may utilize a long wire brush to clean your stovepipe and smokestack in any event once every year. You ought to likewise utilize high-temperature and controlled fires in the stove. You might be enticed to utilize chemical cleaners, yet these do nothing to clean the chimney and your stovepipe. Try not to utilize substantial things, for example, chains or a brush on the finish of a rope. These will just aim genuine harm on the inside fireplace lining.

  • Pay attention to creosote development

Stoves that consume at 100-200-degree Fahrenheit range won’t probably adequately convey the majority of the unburned, flammable gases into the climate and in this manner, these gather along the dividers of the stovepipe and the smokestack as creosote. Creosote is exceptionally flammable and could consume all around strongly.

Creosote is a sticky fluid that could run down the stack and stove pipe. This will right away consume. Creosote could likewise turn into a flaky, dark store that might be effectively expelled by brushing Creosote could change into a hard, coated tar. This is practically difficult to expel; you may require the assistance of an affirmed proficient fireplace scope to dispose of this relentless sort of creosote.

There are a few different ways to lessen or keep the development of creosote.

  • First is to utilize treated wood just to consume. Keep in mind tip number 1, you should just utilize dried wood since consuming wood that still has water will just prompt the making of steam which prompts creosote.

  • Next, you should keep your outside wood consuming stove consuming at high temperatures to avoid catching steam and the formation of creosote.

  • At long last, have your stove expertly cleaned all the time. You won’t simply decrease the danger of creosote development however you will likewise build the proficiency of your outside wood consuming stove.

Most Effective Ways to Overcome Wood Gasification Boiler’s Problem !

In an oxygen restricted environment, gasification is the thermal decomposition of organic material at elevated temperatures and its process requires an initial heat supply to get underway and produces syngas which is a mixture of combustible gases mainly methane, complex hydrocarbons, hydrogen, and carbon monoxide. Giving the process a high degree of flexibility, the syngas can be stored or combusted as it is produced. With the help of gasification, the biomass is burnt very efficiently, and its technologically advanced forms can also provide for carbon capture. It might successfully combat climate change and even reduce the carbon emissions.
The process of being turned into carbon monoxide and hydrogen by reaction of the raw material (wood) at high temperatures with a controlled amount of oxygen is called wood gasification. Wood transforms into gas as without oxygen it is unable to burn, so the transformed gas can be used as a fuel in an internal combustion engine.
These wood boilers were primarily designed to be installed either in a utility room or an outbuilding room. To let one easily heat their house and domestic hot water with wood they have high heat outputs and nice big fireboxes. All one needs to do is fill the big firebox with logs of wood and walk away and let the gasification boiler take care of the rest. One can load the boilers right up, burn them hard, let it burn down and reload again if needed so one can call it like batch burners. Produces a low level of emissions or smoke as this is a very efficient way of burning wood.
The important and familiar technology in the 19th and early 20th century was the gasification, and from the earliest days of the development, its potential and practical applicability to internal combustion engine were well-understood. Most practicing technical people would know a good deal about town gas which was produced from coal as a local business, mainly for lighting purposes, at least initially and then the experience in the trade was widespread. Widely used on industrial scales to generate electricity are the gasification of fossil fuels.
There are quite a few causes of high wood consumption and thankfully many can be resolved but keep in mind that in the form of BTUs (British thermal unit) the wood contains energy. The BTU heat energy is converted from one form, wood, to another, hot water by one’s furnace so that the heat is used in their building or homes. Those BTUs are obviously going somewhere if one’s furnace is consuming the wood. One wants that that energy to go to their home not anywhere else. Some common culprits are;
1. Unseasoned woods can be a big problem as the wood which isn’t seasoned then almost 40% of the woodpile is burnt off just to burn off the wood’s moisture. It doesn’t matter when the woods are cut it isn’t properly seasonal if it isn’t dry enough to burn. In order to get the wood to the moisture level necessary for proper operation in a gasification furnace one’s hardwood must be properly seasoned for at least a year or two.
2. Why is it important to have seasoned firewood? Think of the work and cost one incurred to purchase, haul, cut, split, stack and cover the woodpile, and now just think if somebody steals one’s woodpile and that too 40% of it. The worst thing that can happen to one after so much trouble they go through. The same way one loses as much as 40% of the heating value in their wood to burn off just the moisture in the wood when one burns the green unseasoned woods. Those BTUs exit one’s furnace in the form of steam or condenses one’s furnace. That’s an enormous waste just because one doesn’t plan ahead.
3. The proper operation of the furnace is also affected if the burning wood isn’t properly seasoned.
4. The insulation at the furnace is the next culprit. One will feel the warmth if one touches the skin or roof of their furnace that is because the heat is escaping the furnace, that shouldn’t be the case as manufacturers have designed it to not be insulated but of course, the chimneys and door frame will be too hot to touch.
5. For parasitic heat loss, one should check their underground pipe. To simply measure how much heat is lost there one can do a DELTA-T test.
6. Follow the DELTA –T instructions on locating the source of the heat loss if the test shows that one is losing significant heat. Instructions are;

  •  In the back of the furnace check the uninsulated pipe
  •  Check in other colder areas unheated basements or crawl spaces in the uninsulated pipe
  •  In the underground pipe check for water.

7. If one is still burning more wood after the test shows normal minimal heat loss then consider the following;

  • Ash maintenance is important if ash’s level too high it will kill the furnace’s efficiency
  • Proper cleaning is required around all outdoor furnaces and one should follow all the guidelines for proper cleaning so that the furnace will get back to its ideal efficiency level.
  • Temperatures should always be as per the guidelines and one must never operate their boiler below 140 degrees of temperature.

Benefits of the Wood Boilers in Cold Climate!!

Since the ancient time, human beings are burning wood obtained from the tree in order to gain heat and warmth. You might be thinking that, due to the invention of heating systems by making use of gas and electricity, this trend of burning has died, but in reality it still exists and is being used in different formats. Wood based heating system burns wood logs or chips to generate heat for a single room or to central wood furnace or wood boilers.

A wood furnace and boiler both can provide warmth to your home in cold climate, but their working is different. The warmth created by a furnace is spread through the home by means of a string of fans. This warm air reaches out to different rooms through air ducts. On the other hand, wood boilers create hot water which travels through pipelines in the walls or floors of the house and the hot water radiated heat from the wall or floor surfaces. This heat is called as radiant heat.

If you are thinking about switching from furnace to wood boiler in Australia, then it will be a great move as there are many benefits attached to it. Let’s have a look at them.

a. They are energy efficient and environment friendly- Wood boilers have a closed loop system. This means that, when the stream of hot water cools down in the pipes and returns back to the tank for getting heated again. This water is not completely cold, it is still warm. Therefore, it requires lesser amount of energy to heat the water again and turn it back again to pipes than it is required to heat the cold air in the furnace continuously.

Furthermore, new types of boilers have been invented which make use of renewable fuels like wood, pellets of corn, etc. Hence, they are considered as environment friendly and less expensive than it is required to run furnaces in cold countries like Australia.

b. Provide uniform and comfortable heating- The heat generated by the boilers is distributed uniformly. This does not happen with furnace. The warm air generated by the furnaces is pushed out through air ducts. Therefore, the areas of the house which is far away from the ducts do not receive the heat and remain colder than the remaining parts of the house. If the hot water pipes attached to wood boilers are installed appropriately in the home, then the heat is distributed evenly throughout entire home.

c. Maintain moisture level in the home- Human body requires consistency in the moisture level of the air. As soon as the cold season begins, the homes which make use of wood furnaces get filled with dry air generated from the furnace. The residents of the house suffer from the dry skin. This is not the case with wood boilers. The radiant heat generated by the hot water flowing through the walls and floors does not affect the moisture level as there is no free air blowing out.

d. They are quieter- Wood boilers don’t have any fans attached which have to be switched off and on according to requirement. Therefore they do not create any noise like wood furnaces.

e. They are cost effective- The installation process of the wood boilers in Australia is quite difficult and expensive and takes long time. However, once installed they need not to be maintained on regular basis. They don’t have any filters which are to be cleaned and changed regularly. The pipes and tank fitted are durable if purchased from reputed manufacturer. Therefore, they prove to be cost effective.

f. Other benefits- As the boilers makes your entire home warm, it also delivers warm water through taps and showers. You can make use of it for bathing purpose which saves the energy utilized by water heaters. Additionally, as there is no free flowing of air, there is no chance of allergens or dust particles entering the home as it happens in furnace system. Another benefit is that, wood burning for boilers generated lesser amount of carbon. This is very advantageous for environment.

So, these are the benefits of wood boilers in cold climate area which are making people to get rid of furnaces and install boilers. You can also install one and keep your house warm.