Gas instantaneous water heaters with a closed chamber

The first ques­tion is why a col­umn, and not a dou­ble-cir­cuit boil­er? The answer is obvi­ous — cheap­er. The price dif­fer­ence is mul­ti­ple. A coil must be installed in the boil­er of a spe­cial design; in the case of a ful­ly auto­mat­ic cli­mate sys­tem, the “brains” (elec­tron­ic con­trol unit) are also more com­plex.

[con­tents]

The sec­ond fac­tor is liv­ing in a big city. In EU, cen­tral­ized heat­ing is often eco­nom­i­cal­ly more prof­itable, but for hot water it is more eco­nom­i­cal to install a sim­ple gas instan­ta­neous water heater with a closed com­bus­tion cham­ber, which is avail­able in the ser­vice and inex­pen­sive­ly costs a new one.

Ben­e­fits of a closed cham­ber:

  • the only pos­si­ble type of col­umn for instal­la­tion in any home;
  • sep­a­rate chim­ney;
  • absolute “exhaust clean­li­ness” aris­ing from the pre­vi­ous para­graph;
  • com­par­a­tive heat­ing rate. Unlike a boil­er, no addi­tion­al capac­i­ty is used;
  • sys­tem com­pact­ness. Small pow­er gas water heaters are very easy to install and are pop­u­lar for cramped kitchens.

The fun­da­men­tal draw­back of such a sys­tem is that you still have to drain the water.

How to choose a column

Gas water heater
Gas water heater

The most impor­tant para­me­ter is the pres­sure of gaseous fuel in the sys­tem, regard­less of the degree of auton­o­my. When flow-through hot water equip­ment is con­nect­ed to a propane cylin­der, com­pat­i­bil­i­ty is checked both on the cylin­der reduc­er and on the col­umn. In most cas­es, the col­umn is inte­grat­ed into the main gas sup­ply, and then the employ­ees of pub­lic util­i­ties for the oper­a­tion of gas pipelines deal with com­pat­i­bil­i­ty issues.

The sec­ond pres­sure that the buy­er should pay atten­tion to is water pres­sure. Accord­ing to the oper­at­ing stan­dards of most water util­i­ties, the oper­at­ing pres­sure of water in the sys­tem does not exceed 0.15 bar. At the same time, the device itself must with­stand water ham­mer up to 12–15 bar. Such strength is laid in the event of a seri­ous main acci­dent.

The spe­cif­ic pow­er of the col­umn is mea­sured in heat­ed liters per minute. The fol­low­ing dia­gram rough­ly describes the required pow­er for dif­fer­ent types of oper­a­tion:

power for different types of operation
pow­er for dif­fer­ent types of oper­a­tion

Here, the points of water analy­sis are tak­en accord­ing to aver­age cri­te­ria. It is believed that one mix­er con­sumes about sev­en liters per minute.

Igni­tion types

If the pres­sure and per­for­mance of the col­umn are tech­ni­cal para­me­ters, then the igni­tion method has a pure­ly user val­ue.

All columns are kin­dled in three ways:

  • man­u­al. With the help of match­es, ordi­nary or fire­place, by sim­ply open­ing the valve. The old­est and most incon­ve­nient way, for decades, suf­fi­cient­ly con­ve­nient options have not been invent­ed;
  • piezo igni­tion. Also a com­plete­ly mechan­i­cal design, but slight­ly mod­i­fied, with an addi­tion­al spark-cut­ting but­ton.
  • Elec­tric igni­tion. The most per­fect option.

Advice. Pay a lit­tle extra and take the mod­el on elec­tric con­trol. The first two types almost always suf­fer from design flaws to one degree or anoth­er.

Speaker brand Ariston

The most famous Ital­ian man­u­fac­tur­er of gas water heaters with a closed com­bus­tion cham­ber. Not cheap, but very func­tion­al and styl­ish.

Speaker brand Ariston
Speak­er brand Aris­ton

Ariston MARCO POLO Gi7S

Ariston MARCO POLO Gi7S
Aris­ton MARCO POLO Gi7S

One of the first such speak­ers on the Euro­pean mar­ket. The issue price is 160 $. on aver­age for Inter­net cat­a­logs in EU.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter

Imple­men­ta­tion

Type of equip­ment

Gas flow col­umn

Igni­tion type

elec­tri­cian

Water con­sump­tion

11 liters

Design fea­tures of the mod­el

Mod­u­lat­ing burn­er

Con­trol

Elec­tron­ic score­board with but­tons and indi­ca­tors

The over­all rat­ing of the prod­uct is 5. A high-qual­i­ty mod­el with­out vis­i­ble flaws, expen­sive, but jus­ti­fies the price.

Ariston NEXT EVO SFT 11 NG EXP

Ariston NEXT EVO SFT 11 NG EXP
Aris­ton NEXT EVO SFT 11 NG EXP

Pop­u­lar and afford­able mod­el. The price starts from 190$.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter

Imple­men­ta­tion

Type of equip­ment

Gas flow col­umn

Igni­tion type

elec­tri­cian

Water con­sump­tion

11 liters

Design fea­tures of the mod­el

Frost and over­heat pro­tec­tion.

Con­trol

Touch screen and elec­tron­ic but­tons

Rat­ing — 4.5. Per­for­mance of the pre­vi­ous ver­sion, but some­what more expen­sive.

Ariston Marco Polo M2 10L FF NG

Ariston Marco Polo M2 10L FF NG
Aris­ton Mar­co Polo M2 10L FF NG

Pop­u­lar home mod­el. The price is from 180 $.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter

Imple­men­ta­tion

Type of equip­ment

Gas flow col­umn

Igni­tion type

elec­tri­cian

Water con­sump­tion

10 liters

Design fea­tures of the mod­el

Flex­i­ble tur­bine adjust­ment

Con­trol

Elec­tron­ic infor­ma­tion board with but­tons

Rat­ing — 5. High-qual­i­ty and reli­able aver­age mod­el.

Speak­er brand Bosch

The leg­endary brand of con­sumer elec­tron­ics from Ger­many. Excel­lent qual­i­ty but very expen­sive. Bosch was one of the first brands to pro­vide a water heater with a closed com­bus­tion cham­ber in the Euro­pean mar­ket.

Bosch Therm 4000 S WTD 15 AME

Bosch Therm 4000 S WTD 15 AME
Bosch Therm 4000 S WTD 15 AME

Expen­sive, pow­er­ful, reli­able mod­el. Prices in EU — from 250 $.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter

Imple­men­ta­tion

Type of equip­ment

Gas flow col­umn

Igni­tion type

Ful­ly elec­tric

Water con­sump­tion

15 liters

Design fea­tures of the mod­el

Can run on propane, good RCD against volt­age surges

Con­trol

Con­ve­nient cen­tral LCD screen with tem­per­a­ture infor­ma­tion, with but­tons, also known as a con­trol pan­el

Rat­ing — 5. An excel­lent device, very pro­duc­tive, but the price is high.

Bosch Therm 6000 S WTD 24 AME

Bosch Therm 6000 S WTD 24 AME
Bosch Therm 6000 S WTD 24 AME

A more pow­er­ful ver­sion of the same series. Very expen­sive by the stan­dards of even this type of speak­ers — 650 $. and more.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter

Imple­men­ta­tion

Type of equip­ment

Gas flow col­umn

Igni­tion type

elec­tri­cian

Water con­sump­tion

24 liters

Design fea­tures of the mod­el

Runs on a bal­loon

Con­trol

LCD dis­play with but­tons

Rat­ing — 3.5. Excel­lent mechan­i­cal part, reli­able, but the price of a thou­sand dol­lars is clear­ly not for the aver­age buy­er. There is no point in putting it on a pri­vate house either — it is not a dou­ble-cir­cuit one, for this mon­ey you can also find a dual-use heat­ing boil­er.

Bosch Therm 4000 S WTD 12AM E23

Bosch Therm 4000 S WTD 12AM E23
Bosch Therm 4000 S WTD 12AM E23

One of the first mod­els of tur­bocharged speak­ers on the Euro­pean mar­ket is wide­ly avail­able. The price is around 250$.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter

Imple­men­ta­tion

Type of equip­ment

Gas flow col­umn

Igni­tion type

elec­tri­cian

Water con­sump­tion

3 liters

Design fea­tures of the mod­el

Gas con­trol, tem­per­a­ture con­trolled by water pres­sure

Con­trol

Dis­play ther­mome­ter and but­tons

Grade — 3 . The mod­el is frankly unsuc­cess­ful, although qui­et. The water pres­sure change sen­sor respon­si­ble for the change in tem­per­a­ture is very capri­cious, as a result it is impos­si­ble to accu­rate­ly obtain the opti­mal water.

Speaker brand Neva-Transit.

Con­trary to the name, these are not the prod­ucts of the famous Neva plant in the world. Under this brand, bud­get Chi­nese water heaters are sold in EU. How­ev­er, this is not a clone, and the qual­i­ty is pleas­ant­ly pleas­ing. The Tur­bo series of the Neva-Tran­sit brand offers envi­ron­men­tal­ly friend­ly and reli­able speak­ers with a closed cham­ber.

Neva-Transit TURBO Comfort VPG-10ЕG(MT)

Neva-Transit TURBO Comfort VPG-10ЕG(MT)
Neva-Tran­sit TURBO Com­fort VPG-10ЕG(MT)

A sim­ple bud­get mod­el, the aver­age price in EU is with­in 12–130 $. One of the best options when you need a sep­a­rate chim­ney, but there are not enough funds.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter

Imple­men­ta­tion

Type of equip­ment

Gas flow col­umn

Igni­tion type

Ful­ly elec­tric

Water con­sump­tion

10 liters

Design fea­tures of the mod­el

Auto­mat­ic switch­ing on at water pres­sure is pro­vid­ed by a spe­cial sen­sor

Con­trol

Round knob for select­ing heat­ing modes, indi­ca­tor-timer with mechan­i­cal but­tons for select­ing water tem­per­a­ture

Rat­ing — 4. Cheap and prac­ti­cal in terms of water con­sump­tion and repairs, but some fea­tures are miss­ing. Durable. There is a slight­ly more pro­duc­tive ver­sion for almost the same amount.

Neva-Transit TURBO Comfort VPG-8ЕG(MT)

Neva-Transit TURBO Comfort VPG-8ЕG(MT)
Neva-Tran­sit TURBO Com­fort VPG-8ЕG(MT)

The younger mod­el of the pre­vi­ous device, the fig­ure means a low­er through­put in liters. This series is dis­tin­guished by a bright design in the form of a kind of “pho­to wall­pa­per” with views of water­falls, palm trees, etc. The price is 110$.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter

Imple­men­ta­tion

Type of equip­ment

Gas flow col­umn

Igni­tion type

Ful­ly elec­tric

Water con­sump­tion

8 liters

Design fea­tures of the mod­el

The orig­i­nal col­or, slight­ly redesigned the appear­ance of the con­trol organs.

Con­trol

Round knob for select­ing heat­ing modes, indi­ca­tor-timer

Score — 4. The mechan­ics are the same as in the 10 liters per minute mod­el, but the reduced capac­i­ty is not suit­able for an apart­ment with many water points. The col­or­ful design is not suit­able for every kitchen.

Neva-Transit TURBO Comfort VPG-12E(MT)

Neva-Transit TURBO Comfort VPG-12E(MT)
Neva-Tran­sit TURBO Com­fort VPG-12E(MT)

The most pro­duc­tive mod­el in the line, priced at about 12–130 $.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter

Imple­men­ta­tion

Type of equip­ment

Gas flow col­umn

Igni­tion type

Ful­ly elec­tric

Water con­sump­tion

12 liters

Design fea­tures of the mod­el

Auto­mat­ic switch­ing on at water pres­sure is pro­vid­ed by a spe­cial sen­sor

Con­trol

Mechan­i­cal mode selec­tor, liq­uid crys­tal indi­ca­tor-timer of water tem­per­a­ture

Rat­ing — 4.5. Sim­i­lar to the 10 liter ver­sion, same ergonom­ics, slight­ly more expen­sive on aver­age due to per­for­mance

General conclusions and summary table

As you can see, the fee for the tur­bocharged ver­sion is quite high, which to a cer­tain extent reflects the tech­ni­cal excel­lence of this tech­nol­o­gy com­pared to a stan­dard con­nec­tion to a house hood.

Installing a water heater with a closed cham­ber is asso­ci­at­ed with a chim­ney out­let, so these expens­es must inevitably be added to the cost of the boil­er itself. At the same time, tur­bocharged ver­sions are dis­tin­guished by such an accu­rate calo­rie con­sump­tion that, as a result, the sav­ings are sig­nif­i­cant.

The final price and pow­er table is as fol­lows:

Brand

Aris­ton

Bosch

Neva-Tran­sit

Model
Marco Polo Gi7S
NEXT EVO SFT 11 NG EXP
Marco Polo M2 10L FF NG
Therm 4000 S WTD 15 AME
Therm 6000 S WTD 24 AME
Therm 4000 S WTD 12AM E23
TURBO Comfort VPG-10ЕG(MT)
TURBO Comfort VPG-8EG(MT)
TURBO Comfort VPG-12E(MT)

Pow­er, l./min.

eleven

eleven

ten

fif­teen

24

13

ten

eight

12

Price, thou­sand rubles

16

19

eigh­teen

25

64

25

13

eleven

13

Grade

5

4.5

5

4.5

3.5

3

four

four

4.5

We see that import­ed speak­ers are expen­sive, but very func­tion­al, while it is pos­si­ble to choose a sim­pler Chi­nese ana­logue, which also heats effi­cient­ly. But even the sim­plest Chi­nese mod­el will cost 2–30$ more than a good speak­er with an open cam­era.

[ad_2]

Leave a Reply

You May Also Like