Review of the best flat electric water heaters

 

Phys­i­cal­ly, elec­tric boil­ers heat water accord­ing to the same prin­ci­ple. But the uni­for­mi­ty, inten­si­ty and some oth­er aspects of hor­i­zon­tal and ver­ti­cal water heaters are dif­fer­ent.

Tech­ni­cal fea­tures of hor­i­zon­tal boil­ers:

  • the inevitabil­i­ty of con­vec­tion of hot and cold water. In a ver­ti­cal boil­er, this is eas­i­er due to the nat­ur­al grav­i­ty of the water col­umn, which is grad­u­al­ly select­ed;
  • the hor­i­zon­tal boil­er heats up more slow­ly. The rea­son is sim­i­lar: the mix­ing of water in the tank next to the heat­ing ele­ment is much faster;
  • hor­i­zon­tal mod­els of stor­age heaters heat water more even­ly. Sim­ply — with a hor­i­zon­tal boil­er it is more dif­fi­cult to scald, as well as to “hard­en” with sud­den cold water from a mix­er. When the water in the tank reach­es the planned tem­per­a­ture, it has already warmed up even­ly;
  • Based on the pre­vi­ous para­graph, water sav­ings on a hor­i­zon­tal heater are also greater, since it is not nec­es­sary to “bring to con­di­tion” the jet with a mix­er for too long, pour­ing out the excess.

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But in terms of over­all dimen­sions, there is no gain from hor­i­zon­tal­ly locat­ed heaters; in terms of area, they mean almost the same thing. More­over, some mod­els of hor­i­zon­tal boil­er boil­ers are sev­er­al kilo­grams heav­ier than sim­i­lar ver­ti­cal bar­rels.

Rules for selecting a horizontal boiler

Rating of horizontal flat water heaters for 50 liters

First of all, it is required to plan the ter­ri­to­ry of the kitchen or bath­room, where the water heater will be hung on the wall. For a hor­i­zon­tal lay­out, this is espe­cial­ly crit­i­cal. The use­ful area of ​​the walls, as a rule, goes exact­ly along this axis. If the ceil­ings in the house are high, there will be no prob­lems with the loca­tion of the ver­ti­cal boil­er.

For sim­i­lar rea­sons, pop­u­lar mod­els of hor­i­zon­tal boil­ers are made with a flat tank. Anoth­er rea­son is that it is eas­i­er to bal­ance the cen­ter of grav­i­ty. In the descrip­tions below, all mod­els are con­sid­ered exact­ly flat for­mat.

The empir­i­cal table of water heat­ing time remains approx­i­mate­ly the same (dif­fer­ent man­u­fac­tur­ers state rather dif­fer­ent fig­ures), except for the uni­for­mi­ty of heat­ing.

Pow­er

heater, kW

Time

heat­ing

0.75 2 hours 20 min­utes
one 1 hour 45 min­utes
1.5 1 hour 10 min­utes
2 53 min.
3 35 min.

Advice. The most pop­u­lar both in terms of price and effi­cien­cy of wash­ing are mod­els for 1.5 — 2 kW. More is too ener­gy-inten­sive and expen­sive. Less — to wash for a long time, and a kilo­watt heat­ing ele­ment is not par­tic­u­lar­ly cheap­er than a two-kilo­watt one, both in “dry” and in “wet” ver­sions.

How to choose a boiler brand

Rating of horizontal flat water heaters for 50 liters

As with hor­i­zon­tal mod­els, you need to choose spe­cif­ic para­me­ters and oper­a­tional feed­back. Expen­sive and “pres­ti­gious” brands are full of unsuc­cess­ful heaters that are com­plete­ly unadapt­ed to either Euro­pean elec­tri­cal net­works or cold water pip­ing in most homes. For a hor­i­zon­tal­ly locat­ed tank, it is very impor­tant to select the most opti­mal loca­tion of the noz­zles, with ver­ti­cal mod­els it is much eas­i­er.

Next, we con­sid­er only bud­getary hor­i­zon­tal flat elec­tric stor­age water heaters for 50 liters. This is the most pop­u­lar vol­ume for the needs of a fam­i­ly of two. The cost of a hor­i­zon­tal water heater for 50 liters can reach 150 $or more — water heaters of this type are tech­ni­cal­ly some­what more com­pli­cat­ed than ver­ti­cal ones.

Boiler brand Zanussi

Rating of horizontal flat water heaters for 50 liters
Zanus­si

Ital­ian man­u­fac­tur­er of the mid­dle and pre­mi­um seg­ment, assem­bly can be done in Poland, Roma­nia, Chi­na, Europe and oth­er coun­tries, but rel­a­tive­ly flat boil­ers, prod­ucts from the orig­i­nal fac­to­ry come across more often. Many Zanus­si mod­els are dis­tin­guished by the pos­si­bil­i­ty of mount­ing both ver­ti­cal­ly and hor­i­zon­tal­ly.

Zanussi ZWH/S 50 Smalto DL

Rating of horizontal flat water heaters for 50 liters
Zanus­si ZWH/S 50 Smal­to DL

The issue price is about 130 $, while the mod­el is very wor­thy. In addi­tion to a beau­ti­ful flat design, it has all the nec­es­sary func­tion­al­i­ty for rea­son­able mon­ey. Man­age­ment is very sim­ple, in the world and a thou­sand or two more expen­sive in remote regions. It is made in the so-called flat design, the front wall is flat, not bar­rel-shaped.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter Imple­men­ta­tion
Form fac­tor and mount­ing type Com­bined wall heater
pow­er, kWt 2
heat­ing ele­ment Cop­per
Design fea­tures of the mod­el Patent­ed enam­el fin­ish, two stain­less steel tanks, rein­forced insu­la­tion
Type of con­trol pan­el and con­trollers Elec­tron­ic, with dig­i­tal LCD dis­play

The over­all rat­ing of the prod­uct is 5. A very good option for a rea­son­able price.

Zanussi ZWH/S 50 Splendore Silver

Rating of horizontal flat water heaters for 50 liters
Zanus­si ZWH/S 50 Splen­dore Sil­ver

A sim­i­lar mod­el that costs a lit­tle less. Its price starts from 150 dol­lars in the cap­i­tal’s online stores and can sig­nif­i­cant­ly decrease dur­ing pro­mo­tions.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter Imple­men­ta­tion
Form fac­tor and mount­ing type Com­bined wall heater
pow­er, kWt 2
heat­ing ele­ment Cop­per
Design fea­tures of the mod­el Nick­el plat­ed tank
Type of con­trol pan­el and con­trollers Elec­tron­ic, there is a wire­less con­nec­tion via Wi-Fi

Rat­ing — 5. Excel­lent qual­i­ty at a low­er price, equal to the pre­vi­ous mod­el in every­thing.

Zanussi ZWH/S 50 Splendore XP Silver

Rating of horizontal flat water heaters for 50 liters
Zanus­si ZWH/S 50 Splen­dore XP Sil­ver

A new revi­sion of the pre­vi­ous mod­el, it is mount­ed just as uni­ver­sal­ly, minor improve­ments were made in terms of reli­a­bil­i­ty. The price is from 140 $.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter Imple­men­ta­tion
Form fac­tor and mount­ing type Wall mount­ed ver­ti­cal heater
pow­er, kWt 2
heat­ing ele­ment Cop­per
Design fea­tures of the mod­el Rein­forced ther­mal insu­la­tion, improved RCD, nick­el-plat­ed
Type of con­trol pan­el and con­trollers Elec­tron­ic, liq­uid crys­tal infor­ma­tion dis­play

Score — 4. Sole­ly because of the price, the pre­vi­ous mod­el is almost the same in terms of func­tion­al­i­ty, except for the revi­sion of some inter­nal parts. The resis­tance to ener­gy fluc­tu­a­tions of all Zanus­si mod­els is very good, so it is doubt­ful to over­pay for the same.

Brand of flat boilers Polaris

Rating of horizontal flat water heaters for 50 liters
Polaris

The price of Polaris hor­i­zon­tal flat water heaters with a vol­ume of 50 liters is gen­er­al­ly high­er than aver­age, although this is a Chi­nese assem­bly under a Euro­pean brand. This is pri­mar­i­ly due to the qual­i­ty of per­for­mance. Polaris is a tech­nique of the high­est seg­ment and qual­i­ty; in Chi­na, for exam­ple, Haier com­petes with them.

Polaris FDRS-50H

Rating of horizontal flat water heaters for 50 liters
Polaris FDRS-50H

An ordi­nary flat­tened tank, quite rich in func­tion­al­i­ty. The price of the boil­er is from 100 dol­lars. on sale, but in many stores it is much high­er.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter Imple­men­ta­tion
Form fac­tor and mount­ing type Wall mount­ed hor­i­zon­tal heater
pow­er, kWt 2
heat­ing ele­ment Two, “wet”
Design fea­tures of the mod­el Two heat­ing ele­ments have three oper­at­ing modes: 700 W, 1300 W and full pow­er
Type of con­trol pan­el and con­trollers Elec­tron­ic, with a dis­play that shows com­plete infor­ma­tion.

Score — 4. Very good mod­el, but occa­sion­al­ly comes across a defec­tive assem­bly.

Polaris Vega IMF 50H

Rating of horizontal flat water heaters for 50 liters
Polaris Vega IMF 50H

A more pow­er­ful ver­sion, with a dis­play, mechan­i­cal con­trol, sim­i­lar design, slight­ly heav­ier in weight. The price starts from 14–150 $, due to the pow­er.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter Imple­men­ta­tion
Form fac­tor and mount­ing type Wall mount­ed hor­i­zon­tal heater
pow­er, kWt 2.5
heat­ing ele­ment Sin­gle
Design fea­tures of the mod­el Two modes with an ana­log switch sep­a­rate­ly on the case: “starter” at 1500 W and “tur­bo” at 2500 W
Type of con­trol pan­el and con­trollers The switch­es them­selves are mechan­i­cal round knobs, the indi­ca­tor is LED.

Score — 4. Good work­man­ship, but expen­sive for this brand (in some large retail chains this mod­el is offered for 150 $). This is com­pen­sat­ed by a good RCD and a mag­ne­sium anode.

Polaris FD IMF 50H

Rating of horizontal flat water heaters for 50 liters
Elec­trolux EWH 50 Cen­tu­rio DL Sil­ver H
A simplified mechanical model, less in power, but the price is around 130$.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter Imple­men­ta­tion
Form fac­tor and mount­ing type Wall mount­ed hor­i­zon­tal heater
pow­er, kWt 1.5
heat­ing ele­ment One
Design fea­tures of the mod­el Cop­per heat­ing ele­ment, there is an accel­er­at­ed heat­ing mode (at full pow­er)
Type of con­trol pan­el and con­trollers Two mechan­i­cal round switch­es, no dis­play

Grade — 3 . The mod­el is def­i­nite­ly not worth the mon­ey and is under­pow­ered. For a com­pa­ra­ble amount, you can choose any of the two Polaris list­ed above, while they are many times bet­ter func­tion­al­ly.

Boiler brand Electrolux

Rating of horizontal flat water heaters for 50 liters
Elec­trolux

A well-known Swedish man­u­fac­tur­er also pro­vides very high-qual­i­ty water heat­ing solu­tions in this niche. Elec­trolux 50 liters in hor­i­zon­tal ver­sion are one of the most pop­u­lar boil­ers on the mar­ket in gen­er­al. At the same time, this brand gives a sev­en-year brand­ed war­ran­ty — an unprece­dent­ed solu­tion.

Electrolux EWH 50 Royal H

Rating of horizontal flat water heaters for 50 liters
Elec­trolux EWH 50 Roy­al H

An ana­logue of its ver­ti­cal “broth­er”. Inher­it­ed excel­lent RCD and tem­per­a­ture pro­tec­tion, excel­lent assem­bly, but com­plete­ly mechan­i­cal con­trol. The price tag starts from 150 $.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter Imple­men­ta­tion
Form fac­tor and mount­ing type Wall mount­ed hor­i­zon­tal heater
pow­er, kWt 2
heat­ing ele­ment One, cop­per
Fac­to­ry Esti­mat­ed Time

full tank heat­ing

About 70 min.
Type of con­trol pan­el and con­trollers Mechan­ics

Rat­ing — 4.5. Great water heater, the only fun­da­men­tal prob­lem is the price. Even the mechan­i­cal switch­es are very high qual­i­ty.

Electrolux EWH 50 Centurio DL H

Rating of horizontal flat water heaters for 50 liters
Elec­trolux EWH 50 Cen­tu­rio DL H

A very high-qual­i­ty mod­el, ful­ly elec­tron­ic con­trol, the price is about 150 $.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter Imple­men­ta­tion
Form fac­tor and mount­ing type Wall mount­ed hor­i­zon­tal heater
pow­er, kWt 2
heat­ing ele­ment cop­per
Design fea­tures Improved ther­mal insu­la­tion, alloyed stain­less steel tank
Type of con­trol pan­el and con­trollers Mechan­ics, round knobs.

Rat­ing — 5. The boil­er is the best in its niche. For 150 $, such func­tion­al­i­ty is almost impos­si­ble to find.

Electrolux EWH 50 Centurio DL Silver H

Rating of horizontal flat water heaters for 50 liters
Elec­trolux EWH 50 Cen­tu­rio DL Sil­ver H

A sim­i­lar hor­i­zon­tal elec­tric boil­er for 50 liters, but a more expen­sive mod­el, priced at 160–170 $.

Char­ac­ter­is­tics

Tech­ni­cal Para­me­ter Imple­men­ta­tion
Form fac­tor and mount­ing type Wall mount­ed hor­i­zon­tal heater
pow­er, kWt 2
heat­ing ele­ment cop­per
Design fea­tures of the mod­el Improved RCD, the stor­age tank mate­r­i­al has been slight­ly changed
Type of con­trol pan­el and con­trollers Elec­tron­ic, but­tons + indi­ca­tors. There is a sta­tus dis­play on board.

Score — 4. The pre­vi­ous ver­sion offers almost the same, just a lit­tle cheap­er. A small change in design is not worth an extra few thou­sand, oth­er­wise it is a very good boil­er.

General conclusions and summary table

Rating of horizontal flat water heaters for 50 liters

As you can see, the price tag for a flat hor­i­zon­tal stor­age water heater of 50 liters is con­sis­tent­ly high­er by sev­er­al thou­sand com­pared to ver­ti­cal coun­ter­parts. When study­ing the mar­ket, it turns out that the price equiv­a­lent of a ver­ti­cal boil­er for 50 liters will be a hor­i­zon­tal one for 30 liters. At the same time, it will be pos­si­ble to meet the bud­get of 100 $, how­ev­er, this applies main­ly to not very high-qual­i­ty mod­els.

How­ev­er, for those who care about smooth heat­ing and sav­ing water, such an addi­tion­al fee will not be sig­nif­i­cant, and giv­en the fact that many options for water heat­ing equip­ment from Zanus­si and oth­er com­pa­nies have a com­bined mount, the advan­tages become unde­ni­able.

The final lay­out looks like this:

Brand Zanus­si Polaris Elec­trolux
Mod­el ZWH/S 50 Small­to DL ZWH/S 50 Splen­dore Sil­ver ZWH/S 50 Splen­dore XP Sil­ver FDRS-50H Vega IMF 50H FD IMF 50 H EWH 50 Roy­al H EWH 50 Cen­tu­rio DL H EWH 50 Cen­tu­rio DL Sil­ver H
pow­er, kWt 2 2 2 2 2 1.5 2 2 2
Grade 5 5 four four four 3 4.5 5 four

It turns out that the most opti­mal choice is between Zanus­si and Elec­trolux. Polaris can be rec­om­mend­ed as a brand in gen­er­al, but among hor­i­zon­tal­ly ori­ent­ed boil­ers, the price of their mod­els does not always cor­re­spond to the declared func­tion­al­i­ty, despite the domes­tic brand and Chi­nese local­iza­tion of pro­duc­tion. How­ev­er, their low­er-end mod­els, pro­vid­ed they’re built well, are a good choice for those on a tight bud­get.

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